Michigan Highways: Since 1997.

Michigan Highways website header graphic
M-22 & M-109 junction route signage in Glen Arbor, Michigan

What's New?

As the Michigan state trunkline system is constantly evolving and new (or "new" historical) information is discovered or passed along, new and updated information is added to this site. Below is a list of those changes, with the latest ones listed first.

March 18, 2024   New! 2024-03 Here's what's new or changed today:
March 11–14, 2024   New! 2024-03 Today's website updates include:
  • Completely overhauled the history section of the M-21 route listing (and other additions and improvements), adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! (Copious amounts... as in four-and-a-half times the amount of information! This "overhaul" has been ongoing for nearly a year with information being periodically added to the listing.)
  • Added a "new style" route listing for Former M-210 and made the necessary changes to the Routes 200–229 page. This listing features a complete and expanded history section and an historic route map.
  • Added new December 16, 1977 and November 21–December 20, 1979 historical items to the M-37 route listing and the M-44 route listing.
  • Added a new December 14, 1977 historical item to the M-45 route listing.
  • Added a information to the Notes section of the M-57 route listing on the long-proposed M-57-to-M-90 connection.
  • Added a information to the Notes section of the M-90 route listing on the long-proposed M-57-to-M-90 connection.
  • Added new July 5–November 10, 1977 historical item to the US-131 route listing.
March 4–10, 2024   New! 2024-03 What's updated on the website:
March 3, 2024   New! 2024-03 Here's what's new or changed today:
February 29, 2024   New! 2024-02 Today's website updates include:
  • New! 2099-12 Updated 2099-12 Finally implemented a way to truly only mark those items on the site which are "New!" or "Updated" using the respective graphics. From now on, all items marked as "New!" or "Updated" will be those added or changed at some point in the past year. Older "New!" and "Updated" graphics have been removed from many pages on the site with the remainder being removed in the coming days.
  • The process of removing all old "New!" and "Updated" graphics (see above) is resulting in the correction and updating of many weblinks throughout the site, both to external website as well as other pages in this site.
  • Completely overhauled the history section of the M-27 route listing (and other additions and improvements), adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! (Copious amounts... as in four times the amount of information!)
  • Finally fixed the image comparison slider function on the M-95: Republic Mine Reroute (1958) map page!
  • Added a historic route map to the Former M-101 route listing.
  • Added a historic route map to the Former M-107 route listing.
  • Added a historic route map to the Former M-108 route listing.
  • Added a historic route map to the Former M-110 route listing.
  • Added a new 2006–07 historical item to the M-136 route listing.
February 23, 2024   New! 2024-02 What's updated on the website:
February 21, 2024   New! 2024-02 Here's what's new or changed today:
  • Updated the weblinks and added a few new ones to the Historic US-16 route listing.
  • Updated the October 1–November 2, 1998 and November 2, 1998 historical items , added new January 25, 1963 and November 14, 2000 historical items, and added a map to the August 22, 1961 historical item on the M-20 route listing.
  • Since so many updates were being made to it... Completely overhauled the history section of the M-20 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! (Copious amounts... as in 1.6 times the amount of information!) Also updated the weblinks section and added new links.
  • Updated the May 2, 1927 historical item on the M-29 route listing.
  • Added a new May 1, 1995 historical item to the M-37 route listing.
  • Added new January 25, 1963 historical item and added a map to the August 22, 1961 historical item on the M-46 route listing.
  • Added a new September 15, 1971 historical item to the M-120 route listing.
  • Added a map to the August 22, 1961 historical item on the BUS US-31 (Muskegon) route listing.
February 14, 2024   New! 2024-01 Today's website updates include:
  • Updated the mileages on the National Highway System page to the latest available numbers and fixed some external weblinks.
  • Added a new April-May 1983 historical item to the M-32 route listing.
  • Since so many updates were being made to it... Completely overhauled the history section of the M-32 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! (Copious amounts... as in nearly four times the amount of information!)
  • Added a new April 22, 1963 historical item and updated the 1983 historical item on the M-68 route listing regarding the 1963–1983 extension of the route along US-31 to Petoskey.
  • Jimmy HoffaAdded a note to the Notes section and a July 30, 1975 historical item to the I-96 route listing regarding a theory (one of hundreds) that Jimmy Hoffa was buried somewhere under that freeway.
February 13, 2024   New! 2024-02 Added a great deal of new and updated information to the Notes section, added new February 11, 1965 and 1964–65 historical items and revised the newly-added 1967–68 historical item on the M-32 route listing.
February 12, 2024   New! 2024-02 What's updated on the website:
  • Added some new state trunkline route designations to the Master List 1913–Present:
    • CONN M-59 – the segment of trunkline along Hall Rd/Wm P Rosso Hwy in Macomb Co between Gratiot Ave and I-94 from c.1968 to c.1998 (now part of mainline M-59)
    • CONN I-94 – the former route of M-29 along Snover Rd in Harrison and Chesterfield Twps, Macomb Co, from 1971 to c.1998 (now obliterated)
    • TO I-196 – connected completed segments of I-196 in Allegan and Ottawa Cos. Ran along US-31 and M-21 from 1967 to 1974.
  • Added a new note regarding the potential M-14 freeway through the City of Detroit from the late-1960s and early-1970s to the M-14 route listing.
  • Updated the note on a long-proposed realignment of M-32 and added a new 1967-68 historical item and updated the November 16, 1973 historical item on the M-32 route listing, including a corridor map showing plans for modernizing and realigning M-32 in Otsego and Montmorency Cos.
  • Added a new Late Fall 1985 historical item to the M-37 route listing.
  • Updated the December 23, 1985 historical item and corrected the date of the November 12, 1996 historical item on the M-46 route listing.
  • Updated the text and corrected the date on the June 28, 1996 historical item on the M-50 route listing.
  • Corrected the dates on the September 28, 1973 and June 30, 1994 historical items and added a new January 29, 1982 historical item to the M-66 route listing.
  • Added new Late Fall 1985, December 23, 1985 and March 1, 1994 historical items to the M-82 route listing.
February 1, 2024   New! 2024-02 Here's what's new or changed today:
January 24, 2024   New! 2024-01 Today's website updates include:
January 23, 2024   New! 2024-01 What's updated on the website:
January 22, 2024   New! 2024-01 Here's what's new or changed today:
  • Added a new September 18, 1980 historical item to the Historic US-27 route listing.
  • Updated the 1940 historical item and added a new 1941 historical item to the M-37 route listing.
  • Completely overhauled the history section of the M-42 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! (Copious amounts... as in nearly three times the amount of information!)
  • Updated the December 4, 2003 historical item on the M-55 route listing with the exact date of transfer.
  • Added a new September 18, 1980 historical item to the I-69 route listing.
  • Added a new August 5, 2015 historical item and updated the June 21, 2018 historical item on the US-131 route listing.
  • Updated the August 5, 2015 and June 21, 2018 historical items on the unsigned OLD US-131 (Wexford) route listing.
January 21, 2024   New! 2024-01 Today's website updates include:
  • Added a page on Act 51 of 1951, the primary funding and classification mechanism for Michigan's public highways, roads and streets.
  • Added a picture to the 1977 historical item on the US-31 route listing.
  • Completely overhauled the history section of the M-40 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! (Copious amounts... as in nearly five times the amount of information!)
  • Updated the March 6, 1975 historical item and added an accompanying picture to the M-99 route listing.
  • Added a new June 1, 1999 historical item to the BUS US-131 (Cadillac) route listing.
  • Made quite a few updates, corrections and additions to the Belle Isle Roads route listing:
    • Updated the route map
    • Added a new note to the Notes section
    • Updated the eastern terminus and length of Unsigned M-709 (Oakway Tr)
    • Updated an existing note and added a new note to Unsigned M-709 (Oakway Tr)
    • Separated the termini of Unsigned M-710 (Woodside Dr) into an Eastern Section and a Western Section as well as added route lengths for each section as well as an updated total route length
    • Added thee new notes to Unsigned M-710 (Woodside Dr)
    • Added new September 2012, Fall 2020 and June–July 2022 historical items
    • Updated the November 12, 2013 historical item
    • Corrected/updated many broken links in the Weblinks section
January 18, 2024   New! 2024-01 What's updated on the website:
  • Updated the May 10, 1977 and March 15, 2001 historical items and added a new Jue 25, 1981 historical item to the M-1 route listing.
  • Added a new note to the Notes section and updated the November 1977 historical item on the M-5 route listing.
  • Added a new October 1, 1995 historical item to the M-8 route listing.
  • Updated the March 15, 2001 historical item on the US-12 route listing.
  • Added a photo of a remnant BS I-96 route marker still standing more than three decades after the route had been decommissioned to the Former BS I-96 (Detroit) route listing.
  • Added a couple new notes to the Notes section, added new 1978-79 and September 24, 1992 historical items and updated the April 1, 2004 historical item on the unsigned OLD BS I-96 route listing.
January 17, 2024   New! 2024-01 Here's what's new or changed today:
January 16, 2024   New! 2024-01 Today's website updates include:
January 12, 2024   New! 2024-01 What's updated on the website:
January 10, 2024   New! 2024-01 Here's what's new or changed today:
December 28, 2023   New! 2023-12 Updated the June 30, 1994 historical item on the M-40 route listing.
December 26, 2023   New! 2023-12 Today's website updates include:
December 25, 2023   New! 2023-12 MERRY CHRISTMAS! What's updated on the website:
December 21, 2023   New! 2023-12 Here's what's new or changed today:
December 17, 2023   New! 2023-12 Today's website updates include:
December 14, 2023   New! 2023-12 What's updated on the website:
December 11, 2023   New! 2023-12 Here's what's new or changed today:
  • Completely overhauled the history section of the M-36 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1915! (Copious amounts... as in nearly five times the amount of information!)
  • Updated the October 1, 1998 historical item and added November 2, 1998, July 8, 1999 and March 23, 1992 historical items to the M-20 route listing.
  • Updated the February 18–23/April 3, 1980 historical item on the M-28 route listing.
  • Added a new Fall 2023 historical item to the BUS US-31 (Pentwater) route listing.
December 8, 2023   New! 2023-12 Today's website updates include:
  • Updated the February 4, 1998 historical item on the US-10 route listing.
  • Added a new June 28, 1996 historical item and updated the September 9, 1999 historical item on the BUS M-28 route listing.
  • Updated the December 1991, March 20, 1997 and August 5, 2003 historical items and added a new January 10, 1992 historical item to the US-31 route listing.
  • Updated the April 17–November 1, 1995 historical item on the M-116 route listing.
December 7, 2023   New! 2023-12 What's updated on the website:
December 4, 2023   New! 2023-12 Here's what's new or changed today:
  • Added a December 7, 1981 historical item to the Historic US-27 route listing.
  • Updated the September 26, 1991 historical item with the correct date of establishment on the M-53 route listing.
  • Added a new April–November 1979 historical item and updated the June 24, 1957 and June 18, 1980 historical items, as well as updated a lengthy note on the proposed-but-never-completed westerly extension, on the M-62 route listing.
  • Updated the June 24, 1957 historical item on the M-140 route listing.
December 3, 2023   New! 2023-12 Today's website updates include:
November 28, 2023   What's updated on the website:
November 27, 2023   Here's what's new or changed today:
  • Updated the January 9, 1989, June 30, 1993 and February 1, 1995 historical items and added a new February 2, 2000 historical item to the M-21 route listing.
  • Updated the December 1, 1961 historical item on the Historic US-27 route listing with new information on the "TO I-75" vs US-27 designation of the Waters–Indian River segment.
  • Updated the November 5, 1953 historical item on the M-60 route listing.
  • Updated the June 30, 1994 historical item with the correct date of relinquishment on the I-75 route listing.
  • Updated the June 30, 1995 historical item with the correct date of transfer on the M-109 route listing.
  • Updated the June 30, 1995 historical item with the correct date of transfer and updated the final route length on the Former M-209 route listing.
  • Added a new note to the Notes section and a snippet of a historical State Highway Dept map to the BL I-69 (Coldwater) route listing.
  • Updated the January 3, 1996 historical item with the correct date of transfer on the BUS US-223 route listing.
November 23, 2023   Happy Thanksgiving 2023! Today's website updates include:
November 21, 2023   What's updated on the website:
November 19, 2023   Here's what's new or changed today:
November 17, 2023   Today's website updates include:
  • Added new December 21, 1978 and 1981–1984 historical items and updated the November 1, 1968 historical item on the M-57 route listing.
  • Updated the northern terminus, updated the notes in the Notes section, and updated the weblinks and added two new weblinks to the BUS M-32 Route Listing. Also added a snazzy new BUS M-32 route map to the listing as well.
November 16, 2023   What's updated on the website:
  • Updated the 1979–1982 and 1988–1990 historical items and updated and combined the September 2006 and October 4, 2006 historical items on the M-26 route listing. Also added a new weblink to a historical progression of photos for one portion of the route.
  • Updated the recently-added June 30–July 14, 1993 historical item on the US-41 route listing.
  • Added a March 6–October 28, 1970 historical item to the M-44 route listing.
  • Added a new September 24, 1992 historical item and updated the 1994 historical item on the M-45 route listing.
  • Updated the May 8–June 17, 1975 and December 23, 1986 historical items and added a new July 15, 1964 historical item as well as revised a note in the Notes section of the M-91 route listing.
  • Updated the September 30, 1981 and December 21, 1984 historical items on the US-131 route listing.
  • Made a few minor adjustments and updated several broken weblinks on the M-143 route listing.
November 15, 2023   Here's what's new or changed today:
November 13, 2023   Today's website updates include:
  • Completely overhauled the history section of the M-22 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1919! (Copious amounts... as in doubled the amount of information!) Also updated the Notes section, verified/corrected all weblinks, and added a few new weblinks to that section.
  • Added a new August 23, 1949 and November 11, 1952 historical items and updated the November 10, 1949 and November 6, 1953 historical items on the US-31 route listing.
  • Added a new September 28, 1979 historical item to the M-32 route listing.
  • Added a new August 23, 1949, November 11, 1952 and November 6, 1952 historical items and updated the November 10, 1949 historical item on the M-37 route listing.
  • Added a new November 11, 1952 historical item and updated the November 6, 1952 historical item on the M-72 route listing.
  • Updated the October 15–22, 1970 historical items on the I-75 route listing and the Former M-76 route listing.
  • Updated the July 1, 1970 historical item on the M-204 route listing.
November 9, 2023   What's updated on the website:
  • In October, a new "M-55 Recreational Scenic Byway" is proposed to encompass the entirety of M-55, with the corresponding updates made:
  • Added a new October/November 1957 historical item to the US-131 route listing.
  • Added a "new style" route listing for Former M-196 and made the necessary changes to the Routes 180–199 page. This listing features a complete and expanded history section and an historic route map.
  • Finally(!) found the date of commissioning for the M-201 route designation through Northport and updated the Notes section and all of the historical items on the M-201 route listing.
November 7, 2023   Here's what's new or changed today:
  • Added new December 21, 1957, June 30–July 3, 1958, August 18–September 16,1958 and July 8, 1959 historical items to the US-23 route listing.
  • Added new late-July 1956 and June 17, 1958 historical items to the M-44 route listing.
  • Added a new November 10, 1952 historical item to the M-66 route listing.
  • Added a new November 10, 1952 historical item to the M-88 route listing.
  • Added new late-July 1956, November 21, 1956, July 29, 1957, June 30, 1958, and July 3–7, 1958 historical items and updated the November 10, 1952, mid-June 1957, and September 8–15, 1966 historical items on the US-131 route listing.
  • Added a new note to both the US-131 route listing and the Unsigned I-296 route listing regarding an initial designation for part of the route in Grand Rapids.
  • Updated the (assumedly-) never-used M-133 entry on the Master List 1913–Present with new information on the potentiality that it once existed along Wilson Ave in Grandville.
  • Updated the former M-196 entry on the Master List 1913–Present with new information its existence and possible cancellation timeframe.
November 1, 2023   Today's website updates include:
October 31, 2023   What's updated on the website:
  • Added a new February 15–September 21, 1988 historical item to, and updated the external weblinks on the US-2 route listing.
  • Added new July 18, 1975 and February 18–April 3, 1981 historical items to the M-28 route listing.
  • Added a new 1985–1986 historical item and updated the May 25, 1989 historical item on the M-35 route listing.
  • Updated several weblinks on the M-64 route listing.
October 23, 2023   Here's what's new or changed today:
  • Updated the October 27, 1967, 1978–1982 and October 8, 1990 historical items and added a new December 15, 1971 historical item (with links to historic images) to the M-26 route listing.
  • Added new December 2, 1929, December 15, 1971 (with links to historic images), July 29, 1976 and June 30, 1993 historical item to the US-41 route listing.
  • Updated external weblinks on both the M-26 route listing and the US-41 route listing.
  • Added a new former route designation, albeit likely only an internal one, for SPUR US-41 to the Master List 1913–Present.
October 20, 2023   Today's website updates include:
  • Updated the August 30, 1977 historical item and added a new January 4, 1993 historical item to the M-18 route listing.
  • Added new June 22, 1989 and August 15, 1990 historical items and updated the June 1–14, 1988, June 30, 1993, June 30, 1995, June 28, 1996 and June 26, 2002 historical items on the M-54 route listing.
  • Added a new February 6, 2004 historical item to the Former M-56 route listing.
  • Added a new June 28, 1996 historical item to the M-78 route listing.
  • Updated the October 1999, June 30, 2000, and October 1, 2003 historical items on the M-121 route listing.
October 19, 2023   What's updated on the website:
October 18, 2023   Here's what's new or changed today:
October 17, 2023   Today's website updates include:
October 13, 2023   What's updated on the website:
October 11, 2023   Here's what's new or changed today:
  • Based on new historical information received from MDOT and via contemporary news accounts of the I-96/I-196 "route swap" in 1963–64, the following site changes were made:
    • Added August 31, 1960, September 30, 1961, and January 6–10, 1964 historical items to the US-31 route listing.
    • Updated the October 21, 1963, December 16, 1963, and July 31, 1964 historical items on the US-31 route listing.
    • Added new December 16, 1964, August 30, 1968, and December 4, 1971 historical items to the M-43 route listing.
    • Updated the December 16, 1963 historical item on the M-89 route listing.
    • Updated the September 30, 1963, and October 21, 1963 historical items on the I-96 route listing.
    • Added new December 16, 1963, and January 6–10, 1964 historical items to the I-96 route listing.
    • Added new August 30, 1963, December 16, 1963, January 6–10, 1964, and December 4, 1971 historical items and updated the December 15, 1972 historical item on the M-140 route listing.
    • Updated the 1958–59, September 30, 1963, October 21, 1963, December 16, 1963 and July 31, 1964 historical items on the I-196 route listing.
    • Added new August 31, 1960, December 12, 1962, August 30, 1963, September 30, 1963, and January 6–10, 1964 historical items to the I-196 route listing.
    • Updated the Notes section and added new August 30, 1963, October 21, 1963, January 6–10, 1964, August 30, 1968, 1970–71, and December 4, 1971 historical items to the BL I-196 (South Haven) route listing.
    • Updated the December 16, 1963, August 30, 1968, December 15, 1972, and March 5–April 1, 1996 historical items on the BL I-196 (South Haven) route listing.
    • Updated the December 4, 1971 and March 5–April 1, 1996 historical items on the A-2 route listing.
  • Harmonized the shared historical items between the I-96 route listing and the Historic US-16 route listing, including:
October 6, 2023   Updated the January 28–September 5, 1942 historical item on the US-31 route listing.
October 3, 2023   Today's website updates include:
  • Updated the December 1991, October 23–November 20, 1992 historical items on the US-31 route listing.
  • Updated the November 20, 1992, October 23, 2007 and March 10, 2010 historical items, the length of the former route, and information in the "Notes" on the Former BUS US-31 (Niles) route listing.
October 2, 2023   What's updated on the website:
September 29, 2023   Here's what's new or changed today:
September 25, 2023   Updated the Fall 1968, December 9, 1983 and October 23, 1986 historical items on the US-131 route listing.
September 24, 2023   Today's website updates include:
September 6, 2023   Added a second route map to the Former M-122 route listing.
September 3, 2023   What's updated on the website:
August 30, 2023   Here's what's new or changed today:
August 20, 2023   Today's website updates include:
August 8, 2023   Here's what's updated on the website:
August 3, 2023   Updated the October 29, 1958 and December 5, 1960 historical items on the M-20 route listing.
August 2, 2023   Updated the December 5–8, 1960 historical item and added a new February 15, 1961 historical item to the M-81 route listing.
August 1, 2023   Here's what's new or changed today:
  • Added Late October 1957 and February 2, 1989 historical items to the M-13 route listing.
  • Updated the July 24, 1953–January 4 1954 and the November 17–25, 1961 historical items and added a new October 27, 1961 hitorical item to the US-23 route listing.
  • Added a new October 27, 1961 historical item and updated the November 17–25, 1961 historical item on the I-75 route listing.
July 27, 2023   HHTPS has arrived! Michigan Highways is now served out using the HTTPS encrypted protocol. If you link to the site, feel free to change links to https://www.michiganhighways.org, although it's not necessary as the site will be automatically forwarding HTTP requests to HTTPS.
July 26, 2023   Today's website updates include:
July 8, 2023   Updated the c.1930 historical item and added a new November 22, 1966 historical item to the M-47 route listing.
July 7, 2023   Here's what's updated on the website:
June 28, 2023   Here's what's new or changed today:
June 27, 2023   Today's website updates include:
June 9, 2023   Added a September 7, 1928 historical item to the M-50 route listing.
May 15–18, 2023   Here's what's updated on the website:
  • Updated the mid-May 1933 historical item and added new February 24, 1933, October 27, 1933, and late-February 1934 historical items the M-29 route listing.
  • Updated the November 23, 1948 historical item on the M-65 route listing.
  • Added a new July 2, 1948 historical item to the M-90 route listing.
May 8, 2023   Updated many route maps, including:
May 4, 2023   May the Fourth be With You... and here's what's new or changed today:
April 27, 2023   Today's website updates include:
April 26, 2023   Made the following updates based on the jurisdictional transfer of 0.396 mile of M-3 in downtown Detroit today:
April 24, 2023   Here's what's updated on the website:
  • Added a new rendition of the handmade, wooden M-185 route marker and updated the Notes section regarding the markers to the M-185 route listing.
  • Updated the same M-185 wooden route marker image on the Route Markers page as well.
  • Updated the BS I-196 (Wyoming) route listing to show that some staffers within MDOT chose to sign it as a Business Loop at some point in the early 2000s.
  • Updated the Michigan Intercounty Highway Zone System map on the Intercounty Highways page.
April 21, 2023   Here's what's new or changed today:
April 16, 2023   Today's website updates include:
April 15, 2023   Here's what's updated on the website:
  • Added a new note regarding a 1982–83 proposed route truncation and an October 1982–March 1983 historical item to the M-27 route listing.
  • Added a new note regarding a 1982–83 proposed route truncation and an October 1982–March 1983 historical item to the M-33 route listing.
  • Added a note regarding a 1982–83 proposed route truncation to the M-43 route listing.
  • Added a new note regarding a 1982–83 proposed route truncation and an October 1982–March 1983 historical item to the M-46 route listing.
  • Added a note regarding a 1982–83 proposed route truncation of concurrent M-43 to the M-52 route listing.
  • Added a note regarding a 1982–83 proposed route truncation to the M-54 route listing.
  • Added a note regarding a 1982–83 proposed route truncation of concurrent M-54 to the M-83 route listing.
April 14, 2023   Here's what's new or changed today:
  • Moved some items from the Notes section to create new September 3 1949, March 9, 1950, and September 18, 1952 historical items on the US-2 route listing.
  • Added a new note regarding a 1982–83 proposed route truncation and an October 1982–March 1983 historical item to the US-2 route listing.
  • Added a new note regarding a 1982–83 proposed route truncation and an October 1982–March 1983 historical item to the US-10 route listing.
  • Added a new note regarding a 1982–83 proposed route truncation and an October 1982–March 1983 historical item to the M-28 route listing.
  • Added a new note regarding a 1982–83 proposed route truncation and an October 1982–March 1983 historical item and updated the 1974 historical item on the M-32 route listing.
  • Updated the 1974 historical item and added a new 1982–83 historical item to the M-66 route listing.
  • Added a new note regarding a 1982–83 proposed route truncation and an October 1982–March 1983 historical item to the M-68 route listing.
  • Added a new note regarding a 1982–83 proposed route elimination and an October 1982–March 1983 historical item to the BUS US-127 (Jackson) route listing.
March 21–27, 2023   Website updates during this timeframe include:
  • Updated the August 20, 1930, December 2, 1930, November 12, 1933, November 7, 1949, November 3–30, 1950, July 19, 1951, July 12–August 3, 1955, and November 18, 1955 historical items and added new July 10, 1931 and December 6, 1954 historical items to the US-31 route listing.
  • Added a May 19, 1931 historical item detailing the Act 131 of 1931 (Dykstra Act) additions to US-31 to the US-31 route listing.
  • Added a handy reference map to the November 18, 1955 historical item on the US-31 route listing.
  • Updated the August 3, 1955 historical item and added new October 24, 1955 and August 15, 1959 historical items to the Former BUS US-31 (Holland) route listing.
  • Updated the July 12–August 3, 1955 historical item on the BUS US-31 (Pentwater) route listing.
March 20, 2023   Here's what's updated on the website:
March 17, 2023   Here's what's new or changed today:
March 8, 2023   Today's website updates include:
  • Updated the August 15, 1928, October 30–December 18, 1928 and August 28, 1930 historical items on the M-21 route listing.
  • Added new May 2, 1928, June 6, 1929, November 29, 1929, October 8, 1958 and Late 1977 historical items to the M-21 route listing.
  • Updated the description of "M-21 STUB" in the Master List 1913–Present to more accurately represent the situation with the route.
February 25, 2023   Here's what's updated on the website:
February 23, 2023   Updated the route mileages on every single route listing on the three Intercounty Highway route pages (to the thousandth of a mile, matching the route lengths on the state trunkline route listings) as well as made a few other adjustments on the pages as necessary:
February 22, 2023   Here's what's new or changed today:
February 11, 2023   Added a new June 28, 1960 historical item to the US-12 route listing.
February 9, 2023   Added a new Projected 1980 Michigan Freeway System, 1961 map to the Maps section.
February 7, 2023   Today's website updates include:
February 4–6, 2023   Here's what's updated on the website:
January 28, 2023   Updated the October 1937 historical item on the Historic US-27 route listing adding the month.
January 27, 2023   Added brand new! route maps for 11 additional highway routes:
January 26, 2023   Here's what's new or changed today:
January 25, 2023   Today's website updates include:
January 23, 2023   Here's what's updated on the website:
  • Updated the October 29, 1932 historical item and added a new August 1933 historical item to the US-131 route listing.
  • Added a new note to the Notes section of the US-131 route listing.
  • Added the proposed-but-never-used BUS US-10 designation at Flint for what eventually became I-475 through the city to the Master List 1913–Present.
  • Added the proposed-but-never-used BUS US-10 designation at Saginaw for what eventually became I-675 through the city to the Master List 1913–Present.
  • Added the proposed-but-never-used BUS US-16 designation at Howell for what eventually became BL I-96 through the city to the Master List 1913–Present.
January 20, 2023   Here's what's new or changed today:
  • Updated the December 8, 1930 and October 22, 1935 historical items on the M-106 route listing.
  • Added a note to the M-111 route listing about it being the initially-proposed route designation for the "Ann Arbor Cut-off" bypass.
  • Added new October 1929 and April 11, 1930 historical items to the M-152 route listing.
January 13, 2023   Added a brand-new route listing for Former M-130 and made the necessary changes to the Routes 120–139 page. This listing features a complete and comprehensive history section and includes a historical map of the route of Former M-130, too!
January 12, 2023   Added a newly-discovered historic state trunkline designation—M-21 STUB in Lyons (existing 1929–1934?)—to the Master List 1913–Present.
January 8, 2023   Today's website updates include:
January 7, 2023   Updated the I-96/I-69/I-496/US-27 Interchange map (as proposed in 1976 west of Lansing byt never constructed) utilizing a more precise map from MDOT.
January 2, 2023   HAPPY NEW YEAR! As this website enters its 26th year, the copyright statement in the page footers has been updated to the current year and a few other behind-the-scenes changes have been made.
December 23–31,
2022
  Here's what's updated on the website:
December 19, 2022   Here's what's new or changed today:
December 14, 2022   Updated the internal cross-links on scores of pages that, for some reason, still pointed to the old route listings on the multi-listing pages instead of the single route listing. The listings for US-2, M-6, M-100, M-119 and M-120 were most affected. Also fixed links on the M-55 route listing that were, oddly, pointing to Internet Archive versions of pages of this website for some reason! In addition, did a lot of back-end HTML clean-up that should be invisible to site visitors, but would've kept this site's webmaster up at night if he hadn't done it...
December 13, 2022   Today's website updates include:
  • Added a "new style" route listing for M-129 and made the necessary changes to the Routes 120–139 page. This listing features a completly overhauled and expanded history section.
  • Added a newly-discovered historic state trunkline designation—US-2 STUB in Pickford (existing 1928–1937)—to the Master List 1913–Present.
  • Added a brand-new route listing for Former M-206 and made the necessary changes to the Routes 200-229 page. This listing features a complete history section.
  • Updated/fixed several broken weblinks and added several new links to historic bridges to the US-2 route listing.
  • Updated the Summer 1935 and November 12, 1940 historical items on the M-26 route listing.
  • Updated/fixed several broken weblinks and added several new links to historic bridges to the M-28 route listing.
  • Added a June 1934 historical item to the US-45 route listing.
  • Added a 1928 and October–December 1928 historical items as well as updated the Fall 1929 and the 1929–1931 historical item with a new July 1, 1931 sub-item and updated the August–September 1931 sub-item on the M-64 route listing.
  • Added new December 2, 1930, July 1, 1931, and October 13, 1934 historical items to the M-129 route listing.
  • Updated the Aug–Sept, 1931, July 12, 1933, Summer 1935, December 1939 and OCtober 27, 1967 historical items on the M-129 route listing.
December 7, 2022   Added a "new style" route listing for US-127 and made the necessary changes to the Routes 120–139 page. This listing features a complete and expanded history section and including an actual map of the route of US-127, too!
December 6, 2022   Added new January 17, 1914, June 23, 1914, April 27, 1916, July 6, 1917, July 1, 1919, March 6, 1956, January 3, 1961, February 10, 2022 historical items and added a new November 10–15, 1952 historical item to the M-30 route listing. (With these updates, the history section of the M-30 listing has essentially been completely overhauled over the past two days.)
December 5, 2022   Here's what's updated on the website:
  • Completely overhauled the history section of the M-43 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1919! (I mean a serious amount... as in septupled or octupled the amount of information!) And the listing now also features an M-43 route map as well!
  • Updated the December1, 1961 and June 30, 1962 historical items, added a pair of new November 8, 1961 historical items and new July 7, 1958 and 2023 items, added a Future Southern Terminus and an additional (future) length figure as well as updated the Notes section of the M-30 route listing to reflect its impending extension.
  • Updated the December 12, 1962 and November 7, 1969 historical items on the M-47 route listing.
  • Updated the November 7, 1969 historical item on the M-52 route listing.
November 28, 2022   Here's what's new or changed today:
November 27, 2022   Some additional updates due to the US-31/St Joseph Valley Pkwy freeway completion (and related projects) in Berrien Co:
November 14, 2022   Due to the completion of the US-31/St Joseph Valley Pkwy freeway in Berrien Co, here are some related updates:
  • Added Late 1980s, 2004 and November 9, 2022 historical items to the US-31 route listing.
  • Updated various other sections of the US-31 route listing to show the completion of the Berrien Co freeway segment, including the overall length of the route, the freeway and expressway segments and various other updated. (US-31 is 1.75 miles shorter now.)
  • Major updates and additions to the US-31: Berrien County Freeway in-depth article, including text updates, new maps and photos, etc. Also included is a new overview US-31: Berrien County Freeway Map.
November 6, 2022   Today's website updates include:
  • Added a "new style" route listing for Former M-31 and made the necessary changes to the Routes 30–39 page. This listing features a complete and expanded history section and two historic route maps. (And, no, this had nothing to do with any major change ocurring to any other "31-numbered" route in the state in the near future...)
  • Updated the September 9, 1925 historical item and added a new May 15, 1927 historical item to the M-83 route listing.
  • Updated the September 9, 1925 historical item and added a new May 15, 1927 historical item to the M-84 route listing.
November 3, 2022   Here's what's updated on the website:
  • Added a new December 7, 1959 historical item on the Historic US-16 route listing.
  • Updated the December 14–21, 1963, December 29, 1972 and December 8, 1974 historical items and added new Early 1973, June–July 1974, August 31–October 20, 1982 and December 1, 1985 historical items to the M-21 route listing.
  • Added new October 31, 1957 and November 3–December 7, 1957 historical items and updated the December 7 1959 historical items to the Historic US-27 route listing.
October 16–25,
2022
  A cadre of website updates over the past ten days:
  • A new, albeit very short-lived iteration of M-13 has been discovered! As such, new December 31, 1930 and Mid-May 1931 historical items have been added and the August 12, 1931 historical item has been updated on the M-13 route listing.
  • Updated the Late October 1930, August 30, 1937 and November 1, 1956 historical items and added Mid-May 1931 and January 7, 1935 historical items to the M-14 route listing.
  • Updated the Fall 1952–August 24, 1953 historical item and added new November 16, 1955 and July 17, 1957 historical items to the Historic US-27 route listing.
  • Found a brand new potential state trunkline route designation—BYPASS M-29 at Mount Clemens in c.1948. Added it to the Master List 1913–Present.
  • Found a brand new potential state trunkline route designation—M-35A from downtown Negaunee through downtown Ishpeming in c.1948. Added it to the Master List 1913–Present.
  • Added a new December 6, 1938 and updated the June 10, 1939 historical items on the M-37 route listing.
  • Updated the March 5, 1931 historical item and added a new mid-November, 1931 historical item on the M-60 route listing.
  • Updated the Fall 1952–August 24, 1953 and July 17, 1957 historical items and added a new November 16, 1955 historical item to the M-78 route listing.
  • Updated the Late October 1930 historical item on the US-127 route listing.
  • Updated the July 12, 1933 and August 30, 1937 historical items on the US-131 route listing with M-131 information.
  • Added a new May 26, 1930 historical item and updated the Late October 1930 historical item on the US-223 route listing.
  • Added a M-13 SPUR (1931) and a second M-14 SPUR (1931) entry to the Master List 1913–Present and made a few other minor updates to the listings.
  • Updated the Master List 1913–Present to reflect that BS I-496, which had formerly been classified as a "Proposed/Never Used" route, is now classified as a "Former" route based on internal State Highway Dept maps. It was likely an unsigned designation, however.
October 12, 2022   Here's what's new or changed today:
  • Added a Site History page in honor of the website's 25th year of existence.
  • Added new renditions of the Central Michigan Pike, Cloverland Trail, Custer Trail (alternate version), Tecumseh Trail, Theodore Roosevelt International Highway, and West Michigan Pike auto trail markers and secondary versions of the Central Michigan Pike and Mackinaw Trail auto trail markers image to those trails listings on the Historic Auto Trails listings page.
  • Added a listing for the International Pavedway auto trail to the Historic Auto Trails listings page.
  • Also made a few other minor updates and external link updates to the Historic Auto Trails listings page.
October 11, 2022   Added a new "sub-banner" to the website header noting the Michigan Highways website has now been "Online for a Quarter Century: 1997–2022!" Hard to believe...
Also added brand new! route maps for 22 additional state trunkline routes.:
October 10, 2022   Added brand new! route maps for 24 additional state trunkline routes. An asterisk (*) indicates a newly regenerated map replacing an older map for that route.
October 1, 2022   Today's website updates include:
September 26, 2022   Updated the December 23, 1969 historical item and added a new June 18, 1970 historical item to the US-127 route listing.
September 23, 2022   Here's what's updated on the website:
September 19–20,
2022
  Added brand new! route maps for 23 Upper Peninsula and Northern Lower Peninsula trunkline, Intercounty and Forest Highway routes. An asterisk (*) indicates a newly regenerated map replacing an older map for that route.
September 9, 2022   Added a new September 6, 1977 historical item to the Historic US-27 route listing.
September 7, 2022   Here's what's new or changed today:
  • Added new June 27–November 29, 1958, May 1–June 11, 1959, August 20–October 2, 1965 and December 3, 1973 historical items to the US-127 route listing.
  • Updated the November 16, 1956 and July 18, 1985 historical items on the US-127 route listing.
  • Updated the December 12–14, 1962 historical item on the M-143 route listing.
August 26, 2022   Added brand new! route maps for eleven Upper Peninsula trunkline routes:
August 24, 2022   Today's website updates include:
August 19, 2022   Here's what's updated on the website:
August 17, 2022   Here's what's new or changed today:
August 16, 2022   Today's website updates include:
August 15, 2022   Added a "new style" route listing for M-149 and made the necessary changes to the Routes 140–159 page. This listing features a completly overhauled and expanded history section and including an actual map of the route of M-149, too!
August 12, 2022   Here's what's updated on the website:
August 11, 2022   Here's what's new or changed today:
August 4, 2022   Today's website updates include:
  • Updated the December 21, 1956, October 12, 1959 and Winter 1974 historical items and added the May 22, 1959 historical item to the US-24 route listing.
  • Added new Late 1953/January 1–September 15, 1954, June 24–September 11, 1956, November 15, 1970 and September 28, 1971 historical items to the Historic US-25 route listing.
  • Updated the October 30, 1956 and November 12, 1958 historical items on the Historic US-25 route listing.
July 27, 2022   Here's what's updated on the website:
  • Added November 1, 1926, June 30, 1930, October 3, 1930, June 14, 1931, August 31, 1932, October 29, 1932, late-February, 1934, August 2, 1934, October 29, 1934, January 7, 1935, August 30-September 27, 1937 and June 24, 2957 historical items to the Historic US-25 route listing.
  • Updated the September 7, 1929, February 4, 1931, Mid-May, 1933 and June/December 29, 1937 historical items on the Historic US-25 route listing.
  • Updated the mid-May 1933 and late-Feb 1934 historical items on the M-25 route listing.
July 26, 2022   Gave the Related Links page a much-needed complete updating and overhaul. Sorry for how stale many of the links had gotten!
July 10, 2022   Here's what's new or changed today:
July 2, 2022   Today's website updates include:
  • Updated the November 1, 1957 and November 15, 1957 historical items on the US-2 route listing.
  • Updated the September 10, 1962 historical items on the US-2 route listing and the US-41 route listing.
  • Updated the November 27, 1963, Oct 14-15, 1964 and October 16, 1972 historical items and added new May 1–June 11, 1959, December 28, 1963, September 30, 1964, October 19, 1966, February 2-3, 1967, June 20, 1967, and September 26, 1973 historical items to the Historic US-25 route listing.
  • Added a new September 26, 1973 historical item to the I-75 route listing.
  • Updated the 1954 and May 15, 1954 historical item on the M-123 route listing.
  • Added a new September 26, 1973 historical item to the M-125 route listing.
June 30, 2022   Added new 1962, 1998 and November 9, 2007 historical items to the M-123 route listing.
June 29, 2022   Here's what's updated on the website:
June 25, 2022   Added a brand-new route listing for Former M-122 and made the necessary changes to the Routes 120–139 page. This listing features a complete history section and includes an actual map of the route of Former M-122, too!
June 14, 2022   Updated the August 30/December 29, 1937 historical items on the US-2 route listing and the US-31 route listing.
June 9, 2022   Added a brand-new route listing for Former M-56. This listing features a complete and expanded history section. Also added links from elsewhere on the site to the new Former M-56 route listing, where applicable.
June 3, 2022   Here's what's new or changed today:
  • Added new January 9, 1989, June 1, 1993, October 19, 1994, and March 5, 1996 historical item to the M-21 route listing.
  • Added a sizeable note/discussion on the naming and its related issues of the I-475 freeway as well as updated the September 7, 1981 historical item, added a new 2018–2020 historical item, and added new weblinks to the I-475 route listing.
June 2, 2022   Today's website updates include:
  • Added a new October 25, 1962 and November 26–28, 1962 historical items and updated the November 5–15, 1962 historical item on the US-10 route listing.
  • Updated the December 14, 1984 historical item on the M-21 route listing.
  • Updated the December 10–12, 1962 and the Late August/September 29/November 15, 1962 historical items on the US-31 route listing.
  • Updated the October 25, 1962, July 25, 1975, November 21, 1978, and June 26, 1987 historical items on the M-54 route listing.
  • Added new 1974, August 1, 1980, January 12, 1983, December 22, 1986, June 14, 1988, January 28, 1991, January 7, 1992, July 6, 1993, July 5, 1995, and February 6, 1996 historical items to the M-54 route listing.
  • Updated the November 5, 1962 (11 am), November 5–15, 1962 and December 14, 1962 historical items on the I-75 route listing.
  • Added a new October 25, 1962 historical item to the I-75 route listing.
  • Updated the November 8, 1973, April 1980 and September 7, 1981 historical items and add a new September 26, 1974 historical item to the I-475 route listing.
May 25, 2022   Updated the July 31, 1964 historical item on the I-196 route listing.
May 23, 2022   Here's what's updated on the website:
May 19, 2022   Here's what's new or changed today:
May 17, 2022   Added the following new listings to the Memorial Highways sections of the following route listings:
  • "Senator Tom Casperson Memorial Bridge"– US-2, US-41 and M-35
  • "Darryl M. Rantanen Memorial Highway" – US-2 and US-41
  • "Staff Sergeant Duane J. Dreasky Memorial Highway" – M-5
  • "Aretha L. Franklin Memorial Highway," "Sergeant Collin Rose Memorial Highway" and "Violet T. Lewis Memorial Highway" – M-10
  • "Trooper Rodger M. Adams Memorial Highway" – US-12
  • "PFC Alan Robert Blohm Memorial Hwy" and "Sergeant Kristopher J. Gould Memorial Bridge" – M-13
  • "Deputy Eric Overall Memorial Highway," "Purple Heart Trail" and "Army Sergeant First Class Michael Cathcart Memorial Highway" – M-15
  • "Peter C. Lemon Highway" – US-23
  • "Julie Plawecki Memorial Highway" – US-24
  • "Officer Scott Flahive Memorial Highway" and "PFC Brett Witteveen Memorial Highway" – US-31
  • "Patrolman Bobby Lynn Williams Memorial Highway" – M-34
  • "Ben Lauren and Don Riling Memorial Highway" – M-35
  • "Samuel R. Costello Memorial Highway" – US-41
  • "Michigan State Trooper Timothy O'Neill Memorial Highway" – M-44
  • "Marine Sergeant Michael P. Hodshire Memorial Highway" – M-49
  • "Ensign Francis Flaherty Memorial Highway" – M-50
  • "Trooper Byron J. Erickson Memorial Highway" and "Michigan Desert Storm Veterans Memorial Highway" – M-52
  • "SOC Jason R. Freiwald Memorial Highway" and "Det. Sgt. Christopher M. Wouters Memorial Highway" – M-53
  • "Sergeant Matthew R. Soper Memorial Highway" – M-60
  • "Bataan and Corregidor Veterans Memorial Highway" – I-69
  • "SPC Holly McGeogh Memorial Highway" and "PFC Kenneth Coates Memorial Interchange" – I-75
  • "Staff Sergeant Eugene H. E. Alex Memorial Highway" – M-81
  • "Kevin D. White Memorial Highway," "Corrections Officers Jack Budd and Josephine McCallum Memorial Highway," "Deputy Gate Keeper George W. Haight Memorial Highway" and "Firefighter Coleman A. Tate Memorial Highway" – I-94
  • "Deputy Ernest W. Heikkila Memorial Highway" – M-120
Also made the following updates and changes:
  • Updated the "Pulaski Highway" and "Iron Brigade Memorial Highway" listings on the Memorial Highways section of the US-12 route listing.
  • Updated the "Blue Star Memorial Highway" and "Pere Marquette Highway" listings on the Memorial Highway section of the US-31 route listing.
  • Added a Memorial Highways section to the I-196 route listing.
  • Added a Memorial Highways section to the US-127 route listing.
May 15, 2022   Today's website updates include:
May 11, 2022   Here's what's updated on the website:
May 10, 2022   Here's what's new or changed today:
May 6, 2022   Today's website updates include:
May 1, 2022   Here's what's updated on the website:
April 27, 2022   Here's what's new or changed today:
April 26, 2022   Today's website updates include:
April 25, 2022   Here's what's updated on the website:
  • Updated the 1960 historical item on the US-31 route listing.
  • Updated the October 22–November 9, 1959, September 27, 1960, September 21, 1973 and 1984 historical items on the M-46 route listing.
  • Added several new historical items to the M-46 route listing:
    • October 31, 1950
    • November 6, 1952
    • January 18, 1954
    • March 5, 1957
    • November 8, 1962
    • January 25, 1963
    • April 1, 1986
  • Added a September 6, 1956 historical item to the BUS US-31 (Muskegon) route listing.
April 17, 2022   Here's what's new or changed today:
April 16, 2022   Updated these memorial highway designations on the following route listings:
  • "United Spanish War Veterans' Memorial Highway," "Kenneth J. Moraska Memorial Highway," "AmVets Memorial Drive" and "Heath Michael Robinson Cut River Memorial Bridge" – US-2
  • "Ronald W. Reagan Memorial Highway" – M-3
  • "Keith Deacon Memorial Highway" –  M-5
  • "Paul B. Henry Freeway" and "David John Warsen Memorial Highway" – M-6
  • "Charles J. Rogers Interchange" – M-8
  • "Adler Memorial Highway" and "Holocaust Memorial Highway" – M-10
  • "Iron Brigade Memorial Highway," "Pulaski Memorial Highway," "Tpr. Steven B. Devries Memorial Highway," and "James Bondsteel Memorial Highway" – US-12
  • "Specialist 5 Michael May and Corporal Chris Esckelson Memorial Highway" – M-15
  • "Veteran's Memorial Highway" – M-18
  • "PFC Harold R. Cooley WWII Marine Corps League Memorial Highway" and "Mark V. Ingram II Freeway" – M-21
  • "Carl Oleson, Jr. Bridge" – M-22
  • "United Spanish War Veterans' Memorial Highway," "Sergeant Joe Johnson Memorial Highway," "Roberts-Linton Highway and Veterans of World War I Memorial Highway," "Trooper Larry Forreider Memorial Highway," "Peter A. Pettalia Memorial Highway," and "Major Andrew Becker USAF Memorial Hwy" – US-23
  • "Fallen Soldiers of Iraqi Freedom Memorial Highway," "Matt Urban Memorial Bridge," "Clara Barton Memorial Highway," "10th Mountain Division Highway," and "Corporal Matthew Edwards Memorial Highway" – US-24
  • "William Davidson Memorial Highway" – M-24
  • "Veterans Memorial Highway," "Earl DeMarse Memorial Highway," and "Jacobetti Highway" – M-28
  • "Staff Sergeant Ergin V. Osman Memorial Highway" – M-29
  • "Blue Star Memorial Highway," "St. Joseph Valley Parkway," "Medal of Honor Recipients Highway," "Veterans Memorial Bridge," "Pere Marquette Memorial Highway," and "Green Arrow Route-Mackinac Trail" – US-31
  • "Veterans' Memorial Highway" – M-32
  • "Veterans' Memorial Drive" – M-33
  • "United Spanish War Veterans' Memorial Highway" and "AmVets Memorial Drive" – M-35
  • "Brian Derks Memorial Highway" and "World War II Veterans Memorial Highway" – M-37
  • "United Spanish War Veterans' Memorial Highway," "AmVets Memorial Drive" and "Earl DeMarse Memorial Highway" – US-41
  • "Frank D. Fitzgerald Memorial Highway" — M-43
  • "AMVETS Memorial Scenic Drive" – M-46
  • "Officer James Bonneau Memorial Bridge" – M-50 and BUS US-127 (Jackson)
  • "Trooper Calvin R. Jones Memorial Highway" and "Deputy Grant Whitaker Memorial Highway" – M-52
  • "Earle Memorial Highway," "Christopher Columbus Freeway" and "POW/MIA Memorial Freeway" – M-53
  • "Marine Corps League Memorial Highway" and "UAW Sitdown Strike Memorial Highway" – M-54
  • "Gold Star Mothers Memorial Highway" – M-55
  • "Joseph Prentler Memorial Highway" and the "Bernie Borden Memorial Overpass" – M-57
  • "Vietnam Veterans Memorial Highway," "Candice Dunn Memorial Highway" and "Veterans Memorial Freeway" – M-59
  • "Veteran's Memorial Highway" – M-62
  • "Harry Gast Parkway" – M-63
  • "Ontonagon County Veterans Memorial Bridge" – M-64
  • "Sojourner Truth Memorial Highway," "Green Arrow Route," "Veterans Highway" – M-66
  • "Purple Heart Trail," "Purple Heart Highway," "Pearl Harbor Memorial Highway," "Chevrolet-Buick Freeway," "Louis Chevrolet Freeway," "Veterans Memorial Highway," and "DeWayne T. Williams Memorial Highway" – I-69
  • "United Spanish War Veterans' Memorial Highway" and "Oscar G. Johnson Memorial Highway" – M-69
  • "PFC Shane Cantu Veterans Memorial Highway" and "Graham Barlow Jr., WWII Memorial Highway" – M-71
  • "Hazen Shirley 'Kiki' Cuyler Memorial Highway" – M-72
  • "American Legion Memorial Highway," "Tuskegee Airmen Memorial Highway," "Walter P. Chrysler Freeway," "Charles J. Rogers Interchange," "Officer Martin 'Marty' Chivas Memorial Highway," "John Wayne 'Dusty' Marcum Memorial Highway," "Bernie Borden Memorial Overpass," "Roberts-Linton Highway and Veterans of World War I Memorial Highway," "G. Mennen Williams Highway" and "Prentiss M. Brown Memorial Highway" – I-75
  • "Veterans of Foreign Wars Memorial Highway" – M-81
  • "Korean War Veterans Memorial Highway" – M-82
  • "Matt McNeely Boulevard" – M-85
  • "Trooper Rick L. Johnson Memorial Freeway," "Officer Eric Zapata Memorial Highway," "Chief Ed Switalski Memorial Highway," "94th Combat Infantry Division Memorial Highway," "Underground Railroad Memorial Highway," "Auxiliary Lieutenant Dan Kromer Memorial Highway," and "James G. O'Hara Freeway" – I-94
  • "AmVets Memorial Highway," "Officer Trevor Slot Memorial Highway," "Mitchel A. Kiefer Foundation for Distracted Driver Awareness Highway," "Officer Mason Samborski Memorial Highway," "Disabled American Veterans Memorial Highway," "Philip A. Hart Memorial Highway," and "Rosa Parks Memorial Highway" – I-96
  • "Green Arrow Route-Mackinac Trail," "Sydney Ouwinga Memorial Bypass," "Underground Railroad Memorial Highway," "Specialist 4th Class Eric Burri Memorial Highway," "Corporal Ross A. Smith Memorial Highway" and "Private First Class Nicholas H. Blodgett Memorial Highway" – US-131
  • "Sgt. Henry E. Plant Memorial Grand River Bridge Non-Motorized Trai" –  M-231
  • "Moses J. Jones Parkway" – BUS US-31 (Muskegon)
April 15, 2022   Today's website updates include:
April 14, 2022   Here's what's new or changed today:
April 5, 2022   Here's what's updated on the website:
March 31, 2022   Today's website updates include:
March 30, 2022   Here's what's new or changed today:
January 26, 2022   Here's what's updated on the website:
January 22, 2022   Today's website updates include:
  • Updated the US-223 route listing to show the route "officially" terminates at US-127 instead of the US-12 & US-127 junction according to MDOT mapping data.
  • Updated the OLD US-131 (Wexford) route listing on the Unsigned Routes page to reflect that the entirety of the route was not transferred to local control in 2018—a short, 0.256-mile long segment remains in the City of Manton. Also added a 2015–16 historical item and updated the July 2, 2018 item on the listing.
  • Updated the OLD M-42 route listing on the Unsigned Routes page to reflect that it was transferred to city control sometime in 2018 and is no longer an unsigned trunkline.
  • Added a new Fall 2018 historical item to the M-42 route listing related to the above changes.
  • Updated the OLD M-59 route listing on the Unsigned Routes page to reflect a portion of the route was transferred to local control in 2018.
  • Updated the OLD M-153 route listing on the Unsigned Routes page to reflect a portion of the route was transferred to local control in c.2015-17.
January 21, 2022   Added a "new style" route listing for the unsigned Belle Isle Roads (M-700 –  M-712) and made the necessary changes to the Unsigned Trunklines page. This listing features information for all thirteen unsigned trunkline routes on Belle Isle (M-700 –  M-712) and a completely expanded history section, too!
January 19, 2022   Here's what's new or changed today:
  • Added listings for M-700 through M-712—the unsigned state trunkline designations for the "Belle Isle Roads" added in 2014—to the Master List 1913–Present.
  • Updated the August 30, 1937 and December 29, 1937 historical items and added a August 3, 1938 historical item to the M-60 route listing.
January 17, 2022   Here's what's updated on the website:
January 14, 2022   Today's website updates include:
  • Added a "new style" route listing for M-117 and made the necessary changes to the Routes 100–119 page. This listing features a completely expanded history section, too!
  • Updated the October 1940 historical item and added another new November 12, 1940 historical item to the US-2 route listing.
  • Added November 7, 1949 and November 10, 1952 historical items and updated the October, 1940 and November 10, 1949 historical items on the M-48 route listing.
  • Added August 1954 and February 8, 1961 historical items and updated the May 18, 1962 historical item on the M-123 route listing.
January 13, 2022   Here's what's new or changed today:
  • Added a "new style" route listing for M-116 and made the necessary changes to the Routes 100–119 page. This listing features a completely expanded history section, too!
  • Added a November 1, 1931 historical item to the M-124 route listing.
  • Updated the M-343 route listing to reflect the fact that MDOT officially considers the route to extend to M-43 north of Richland in contradiction to the MDOT-erected signage in the field. Also added a map illustrating the situation.
  • Updated the Former BUS US-127 (Lansing) route listing to show the unsigned route has not been in existence for awhile. Updated the Master List 1913–Present as well.
January 12, 2022   Here's what's updated on the website:
  • Completed adding the years to the "Extant" column in the Master List 1913–Present—a process which began when that column was added when the list was transitioned to the new website design in 2013(!). Every route designation now has the years it existed(s) shown, if known. It was a huge undertaking...
  • Updated the extant dates and the description of Baraga's Former BUS US-41 on the Master List 1913–Present.
  • Added Former BS I-69 in Port Huron to the Master List 1913–Present as it had been overlooked. (It only existed for a short period before it was redesignated as BL I-69.)
  • Also added the proposed-but-never-used I-73 designation to the Master List 1913–Present as well. (I-73 will likely receive its own listing or feature article on the site in the future.)
  • Completely overhauled the history section of the M-38 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! Also added new Memorial Highway information to the route listing as well.
  • Updated the January 1969 historical items on the M-26 route listing, the M-28 route listing, the M-35 route listing, and on the US-41 route listing.
  • Corrected the June 25, 1945 historical item on the Historic US-112 route listing thanks to a heads-up by site visitor Dyche Anderson. Thanks Dyche!
January 7, 2022   HAPPY NEW YEAR! Today's website updates include:
  • Completely overhauled the history section of the M-17 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1913! (I mean a serious amount...)
  • Updated the Early 1938 and Spring 1939 historical items on the M-39 route listing.
  • Updated the Early 1938 historical item on the M-43 route listing.
December 28, 2021   Here's what's new or changed today:
  • Updated one of the general notes and added July–September 1986, May–June 1989, and November 20, 1989 historical items to the M-5 route listing.
  • Added a route listing for Former M-9. This listing features a complete and expanded history section. Also added links from elsewhere on the site to the new Former M-9 route listing, where applicable.
  • Updated the 1926 historical item and added new May 2, 1927 and Late 1929 historical items to the M-69 route listing.
  • Updated one of the general notes, added a new note, and added a map illustrating the 1960 planning proposal for 1960 to the M-69 route listing.
  • The "1939–1940 M-203 Saga" is detailed: Added new April 14, 1940 and August 1945 historical items and updated the July 12, 1933, July 12, 1939 and November 12, 1940 historical items on the M-203 route listing.
December 25, 2021   MERRY CHRISTMAS 2021! Here's what's updated on the website:
December 22, 2021   Added a August 28, 1940 historical item to the M-99 route listing.
December 6, 2021   Today's website updates include:
November 28, 2021   Here's what's new or changed today:
November 25–27,
2021
  Here's what's new or changed:
November 18, 2021   Added a May 1959 historical item on the US-23 route listing.
November 17, 2021   Updated the November 21, 1976 historical item on the I-275 route listing.
November 11–14, 
2021
  Here's what's updated on the website:
  • Added a route listing for Former M-169 and made the necessary changes to the Routes 160–179 page. This listing features a complete and expanded history section. Also added links from elsewhere on the site to the new M-169 route listing, where applicable.
  • Completely overhauled the history section of the M-18 route listing, adding copious amounts of "new" historical information on that route, including tons of new info going back to 1914!
  • Added a significant new July 3, 1949 historical item to the Historical US-27 route listing.
  • Updated the May 15, 1927 and November 7–10, 1949 historical items and added a new Spring 1941 historical item on the Historical US-27 route listing.
  • Minor tweaks to the January 7, 1935, January 28, 1942, July 3, 1949 and 1950 historical items on the M-55 route listing.
  • Split the "1949–1950" historical item into separate July 3, 1949, Late 1949, July 20, 1950, and November 3, 1950 historical items and added a new December 4, 1961 historical item on the Former M-76 route listing.
November 3, 2021   Added the Houghton & Higgins Lakes Area Trunkline History Map, 1939–Present to the Maps section showing the evolution of the state trunkline highway system in that area of Roscommon and southern Crawford Counties over the decades through an animated map.
October 2, 2021   Added August 1, 1996 historical items to the following route listings:
September 6, 2021   Added a 1940–41 historical item the US-31 route listing.
September 3, 2021   Today's website updates include:
August 25, 2021   Here's what's new or changed today:
  • Added information on the I-75 Modernization Project in Oakland Co to the I-75 Route Listing as well as a new 2016–2023 historical item and a link to the MDOT project website.
  • Added additional information to the November 11 and November 12, 1960 historical items and updated the November 5 1962 historical item on the I-75 Route Listing.
  • Added new historical information to the November 8, 1960 and December 1 1961 items on the Historical US-27 route listing.
  • Added new August 7–15, 1961 and June 5, 1962 historical items to the Historical US-27 route listing.
  • Separated out the various 1961 historical items on the Historical US-27 route listing into their own distinct entries.
  • Added additional historical information to the Week of October 15 1961 item on the M-68 route listing.
July 4, 2021   Updated some links, made a few minor updates and corrected a few typos on the article M-35: The Highway Henry Ford Stopped.
June 16, 2021   Updated the February 7, 2017 historical item on the Former M-209 route listing.
June 11, 2021   Here's what's updated on the website:
June 9, 2021   Oddly enough, several M-247-related updates this go-around:
  • Updated the northern terminus of M-247 to reflect the name change of Bay City State Recreation area back to Bay City State Park in 2017 in the M-247 route listing.
  • Added a new note regarding the above name change to the M-247 route listing.
  • Added a new May 21, 1984 historical item to the M-247 route listing.
June 5, 2021   Today's website updates include:
  • Added a February 1, 1924 historical item to the Historic US-16 route listing.
  • Updated the 1936 historical item, added a December 29, 1937 historical item, and updated the September 9/November 10, 1949 historical item on the M-22 route listing.
  • Updated the January 28, 1942 historical item and added April 1, 1942 information to the M-28 route listing.
  • Added a September 30, 1924 historical item to the M-124 route listing.
June 4, 2021   What's new or changed:
June 3, 2021   A listing of what is new or changed on the site today:
April 3, 2021   Here's what's updated on the website:
  • Added new 2020 and 2021 "historical" items to the M-30 route listing regarding the Edenville Dam Failure.
  • Added new 2020 "historical" items to the US-10 route listing regarding the Edenville Dam Failure.
  • Also added the various segments of Memorial Highways to the US-10 route listing.
November 27, 2020   Added the proposed-but-never-implemented M-275 route designation and added some information to the M-2 listings on the Master List 1913–Present.
November 2, 2020   Today's website updates include:
November 1, 2020   What's new or changed:
  • Updated the Master List 1913–Present to add the designation US-131 STUB used from 1931–1934 in Osceola Co.
  • Updated the 1926, April 20 and May 2, 1927 historical items on the M-13 route listing.
  • Updated the 1926, May 2, 1927, and 1930 historical items and added a July 15, 1931 historical item on the US-131 route listing.
  • Added May 28, 1928 and July 15, 1931 and updated the mid-1934 historical items on the M-179 route listing.
October 30, 2020   Decided to add the original-but-eventually-never-used Interstate route designations from AASHO's "Official Route Numbering for the National System of Interstate and Defense Highways" map adopted on August 14, 1957 to the Master List 1913–Present. These never implemented designations included: I-67 (never built), I-77 (became part of I-94), I-92 (became part of I-94), and I-94N (became I-196, now I-96).
October 28, 2020   Added a newly "discovered" historic iteration of the M-144 route designation that was assigned but never actually constructed or posted in the field to the Master List 1913–Present.
October 25, 2020   A listing of what is new or changed on the site today:
  • Added a section containing what could be referred to as "named-designation" routes to the Master List 1913–Present for some routes which didn't have or do not have a route number. These may not be 100% "official" and may be updated over time if more "official" information can be located. For now, they include:
    • BELLE ISLE ROADS – A catch-all listing for the entire network of roads on Belle Isle which were jurisdictionally transferred from the City of Detroit to the State of Michigan in 2014 when the State took over Belle Isle Park as a State Park. These roads are officially classified as Unsigned State Trunklines at present and are included on that page.
    • CAPITOL LOOP – A duplicate listing. It's long been listed under I-496 CL which has seemed to be a secret internal designation used on some internal MDOT maps to denote the Capitol Loop, as if it were a business loop off I-496, which it essentially is.
    • NORTHWESTERN HWY – Before it was designated as BS I-696, M-4, US-10 or M-4, all or portions of Northwestern Hwy did not bear a state trunkline highway designation, so it's listed here and, in the future, a route listing page will be created for it as well.
    • WIARD RD – For less than a year after the US-12 designation was removed from Wiard Rd at Willow Run, this roadway bore no route designation and while nowadays it may been referred to by MDOT as "OLD US-12" until it was jurisdictionally transferred, it seems that during its time as an unsigned trunkline, it was referred to as just Wiard Rd.
  • Made many other updates to the Master List 1913–Present, especially to former routes, including the years the route existed.
  • Updated the links to the MDOT-created brochures for the M-6/South Beltline project and added a link to the commemorative brochure to the November 2004 historical item on the M-6 route listing and also updated some of the weblinks at the bottom of the page
  • Updated the February 1985 historical item on the M-183 route listing.
October 4, 2020   Here's what's updated on the website:
September 30, 2020   Today's website updates include:
September 29, 2020   What's new or changed:
September 10, 2020   Here's what's updated on the website:
September 8, 2020   Today's website updates include:
August 26, 2020   Added additional historical information to the Michigan's Route Markers page regarding a suggestion to change the standard state trunkline marker in 1961.
June 23, 2020   Updated the Apr 19, 1941 historical item on the US-2 route listing.
May 29, 2020   Added the Former M-114 Route Map to the Former M-114 Route Listing showing the route of former M-114 as well as all state trunkline route designations to ever utilize any part of the historic Grand Rapids Beltline System from 1928–present.
April 30–31, 2020   Today's website changes and updates:
February 24, 2020   Updated the Dec 23, 1961 historical item on the US-131 route listing.
January 11–24, 2020   Here's what's updated on the website:
January 6, 2020   Happy New Year 2020! This website enters the fourth decade its existed in (1990s, 2000s, 2010s and 2020s). Who knew Scott Oglesby's little challenge back in 1997 would have resulted in this? As this website nears its 23rd birthday, here's what's new:
November 1, 2019   Added an M-343 route map to the M-343 route listing.
September 7, 2019   Updated the M-89 route map to show the addition of M-43 to the route between Richland and Plainwell.
September 4, 2019   Updated the route marker graphic on the M-343 route listing to reflect the actual marker used on the highway itself.
September 3, 2019   Here's what's updated on the website:
June 6, 2019,
September 1, 2019
  Here's what's updated on the website related to the myriad Kalamazoo changes:
July 20, 2018   Here's what's new or changed:
  • Officially rededicated the Master List: 1918–Present listing of every state trunkline designation ever used as the Master List: 1913–Present, as the additional five years' worth of data has been being added to the website for some time now.
  • Updated the Introduction page with new highway and roadway length statistics.
July 8, 2018   Today's website updates include:
July 3, 2018   Added a new July 1944 historical item to the M-37 route listing.
December 22, 2017   New and updated stuff on the website:
November 23, 2017   Updated and expanded the November 1949 and November 1952 historical items on the M-37 route listing.
November 18–19, 2017   Updates on the site for this weekend include:
November 14, 2017   Added a new August 1928 historical item to the M-50 route listing.
November 13, 2017   Today's website updates include:
October 31, 2017   New and updated stuff on the website:
October 22, 2017   New and updated stuff on the website:
October 19, 2017   Here's what's new today:
October 18, 2017   Today's website updates:
October 17, 2017   After many, many years in the making and three months of research, the now complete Historic US-112 page has been uploaded. It contains a complete narrative historical overview of the route as well as a complete and thorough year-by-year history section. Also added an additional note to the M-112 route listing explaining the existence of that route to its U.S. Highway brother.
October 16, 2017   Here's what's new today:
  • Updated the June 1930–1933 historical item and added a new 1937 item to the Historic US-16 route listing regarding the one-way configuraiton on the "Farmington Cutoff."
  • Made a minor update to the 1937 historical item in the M-47 route listing.
October 13, 2017   Added a June 1934 historical item, added information to the January 1935 items, and updated the September 1935 item on the M-151 route listing.
October 11, 2017   Today's website updates:
October 10, 2017   A few historical item updates, all related to the completion of the "Niles Bypass":
October 6–8, 2017   Several Pure Michigan Byway-related updates:
September 13, 2017   New and updated stuff on the website:
  • Added a new November 1956 historical item (replacing an old generic 1957 item) to the US-127 route listing on the completion of the Mason–to–Leslie expressway in Ingham Co.
September 7, 2017   Today's website updates include:
September 4, 2017   A pair of updates for the site:
  • Updated the US-2 route listing with new and additional information on non-freeway milemarking along the route.
  • Added information on the new non-freeway milemarking to the M-28 route listing.
August 30, 2017   Several updates on the site related to a spate of jurisdictional transfers in Grand Rapids:
August 8, 2017   Updates on the site for today include:
  • Added additional information to the Historic US-27 narrative on that route's extension over the Mackinac Bridge for a few years in the late 1950s and a proposal to continue the route all the way to Sault Ste Marie. Also added information on this proposal to the US-27 year-by-year history as well.
  • Added the same information as noted above to the US-2 route listing. Also added some additional information regarding milemarkers on US-2 as well.
  • Added to the Master List a newly discovered planned-but-never-implemented BUS US-2 designation to be co-signed along BL I-75 through St Ignace from 1958.
July 28, 2017   Here are today's site updates:
July 24–26, 2017   A pair of new route listings for the site:
  • Added a "new style" route listing for Former M-111 and made the necessary changes to the Routes 100–119 page. This listing features a complete and expanded history section.
  • Added a "new style" route listing for Former M-112 (the Willow Run Expwy and Detroit Industrial Expwy) and made the necessary changes to the Routes 100–119 page. This listing features a complete and expanded history section.
July 16–17, 2017   Today's website updates include:
  • Added a "new style" route listing for Former M-110 and made the necessary changes to the Routes 100–119 page. This listing also features an thoroughly-revised history section.
  • Added a "new style" route listing for Former M-209 and made the necessary changes to the Routes 200–229 page. This listing also features an extensive history section.
  • Added information to the M-109 route listing with information on the D.H. Day Highway designation, including an item in the Notes section, an historical item and an external weblink.
July 13, 2017   New and updated stuff on the website:
July 12, 2017   Updates on the site for today include:
  • Added a "new style" route listing for M-109 and made the necessary changes to the Routes 100–119 page. This listing also features an overhauled and updated history section.
  • Added new October 1978 and 1980 historical items to the US-131 route listing to signify the removal of I-296 route markers in Grand Rapids.
July 11, 2017   Added a "new style" route listing for Former M-108 and made the necessary changes to the Routes 100–119 page. This listing also features a completely overhauled and updated history section.
June 26, 2017   Added May 1927 historical items noting the effective date to each of the route listings of the original 1926 US Highway routes added to Michigan in that year:
June 26, 2017   Updates on the site for today include:
  • Found an earlier iteration of M-123 running between Nunica and Muskegon in Ottawa and Muskegon Cos (the predecessor of M-126) and added a new December 1929 historical item and updated the 1934 item in the M-123 route listing.
  • Added a "new style" route listing for Former M-107 and made the necessary changes to the Routes 100–119 page. This listing also features a completely overhauled and updated history section.
June 18, 2017   Added a "new style" route listing for M-106 and made the necessary changes to the Routes 100–119 page. This listing also features a completely verified history section.
June 16, 2017   Here are today's site updates:
  • Added a "new style" route listing for M-104 and made the necessary changes to the Routes 100–119 page. This listing also features a completely overhauled and updated history section.
  • Added a "new style" route listing for Former M-105 and made the necessary changes to the Routes 100–119 page. This listing features a complete and expanded history section.
  • Updated the c.1940–42 historical item on the Historic US-16 route listing.
May 2, 2017   New and updated stuff on the website:
May 1, 2017   Here are the latest updates:
April 30, 2017   Today's website updates include:
April 29, 2017   Another three updates to the website:
  • Added a "new style" route listing for M-103 and made the necessary changes to the Routes 100–119 page. This listing also features a completely overhauled and updated history section.
  • Made a few minor revisions to the history section of the US-131 route listing.
  • Added a section on "Connector 102" to the notes section of the M-102 route listing.
March 27, 2017   Added a "new style" route listing for M-102 and made the necessary changes to the Routes 100–119 page. This listing also features a completely overhauled and updated history section.
March 25, 2017   A trio of updates today:
  • Updated the October 1994 and August 1999 historical items on the M-5 route listing.
  • Updated the Master List with additional information about two proposed uses for the M-9 designation in the 1980s and 90s.
  • Corrected the "State Trunkline Needs, 1960–1980" item in the US-45 route listing. A site visitor pointed out that section was a duplicate of the one from the M-44 route listing. (Oops!) The US-45 information has been uploaded now. —Thanks much wstas32!
February 26, 2017   Here are today's site updates:
  • To reflect the documentation of the second interation of M-13 along present-day M-136 from 1931–1934, new April 1927 and February 1931 historical items are added to the M-13 route listing and the April 1927 and August 1931 items are updated.
  • Additionally, the March 1933 and Janiaru 1935 historical items are updated and expanded on the M-13 route listing.
  • In part due to the updates above, the February 1931 and June 1962 historical items on the M-136 route listing are updated and expanded.
February 21–22, 2017   More "new style" route listings and other updates to the site:
February 18, 2017   Latest updates:
  • Added a few newly-discovered historic route designations to the Master List:
    • CONN US-10 and CONN US-27 –  the wbd-US-10 to nbd US-27 and sbd US-27 to ebd US-10 connector at Clare in the 1960s and early 1970s
    • US-41A or ALT US-41 – proposed, but never implemented at Negaunee and Ishpeming
    • BUS M-78 – proposed to run concurrently with BUS US-27 at Charlotte
    • BUS M-83 – proposed, but never implemented in Flint
    • BL I-196 – proposed, but never implemented at Grand Rapids
  • Updated the Notes sections for the M-54 and M-83 route listings to reflect the original proposal to extend M-83 southerly through Flint instead of designating M-54 along the route.
February 8, 2017   Here's what's changed on the site:
February 6, 2017   Updated today:
  • After much delay, the long-neglected US-12A routing in downtown Saint Joseph from the 1930s has finally been added to the Master List. More information on this route will be added to the site in the future, but at least now it's documented on the Master List! Many thanks to Marc F. for his repeated and insistent badgering...
  • Added a new January 1963 historical item to the Historic US-27 route listing.
February 4, 2017   Here's some more stuff that's changed or been added:
  • Found yet another former "undiscovered" state trunkline from yesteryear! This time an earlier iteration of M-160 than previously known (1929–1935) at Springport, but never actually signed in the field. Updated the Master List with this new M-160 routing.
    Online 20 Years, 1997-2017
  • As of this June, the Michigan Highways website will have been online 20 full years! To celebrate this achievement, I've added some new graphics to the site header image highlighting this fact.
  • Updated the May–July 1960 historical item on the M-55 route listing.
February 3, 2017   Lots more historical item updates today:
January 30, 2017   Updated the November 1971 historical items and added new September 1971 items to the M-40, M-51 and M-119 route listings.
January 27, 2017   Added "new style" route listings for M-97 and Former M-98 and made the necessary changes to the Routes 90–99 page. These listings also feature completely overhauled and updated history sections!
January 25, 2017   Added a "new style" route listing for M-96 and made the necessary changes to the Routes 90–99 page. This listing also features a completely overhauled and updated history section and including an actual map of the route of M-96, too! Also added a new July 1926 historical item to the M-99 route listing.
January 23, 2017   Updated the 1961 and January 1966 historical items and added the January 1962 item on the M-37 route listing.
January 21, 2017   Updated the October 1940 historical items on the US-12 and BUS US-12/BL I-94 (Battle Creek) route listings.
January 20, 2017   A pair of updates:
January 19, 2017   Here's what's updated today:
  • "Discovered" a heretofore unknown US-2A designation at Ironwood which existed from 1934–1939 and updated the Master List and various items on the US-2 route listing.
  • Updated two 1933 historical items and added new November 1932, February 1933, and December 1933 items to the US-2 route listing.
  • Added details of a planned-but-never-implemented upgrade to the route of BL I-94 at Battle Creek to the Notes and History sections of the BL I-94 (Battle Creek) route listing.
  • Added missing NHS information to the M-94 and M-95 route listings.
January 18, 2017   A trio of updates today:
  • Updated the October 1936 historical item and completely overhauled and rewrote the March/August 1937 item on the US-12 route listing.
  • Added the history of the historic US-12A route designation in downtown Battle Creek to the beginning of the BUS US-12/BL I-94 (Battle Creek) route listing, as it was a predecessor route to the existing one.
  • Added a newly discovered US-12A route designation at Fort Custer to the Master List.
January 17, 2017   Added new July 1927 historical items to the Historic US-25, Historic US-16, Historic US-112, US-10 and M-53 route listings.
January 16, 2017   After months of research, an entirely overhauled and expanded I-96 route listing debuts. A complete historical timeline of ALL routes which eventually became part of I-96 has been incorporated. Additionally:
January 15, 2017   Four updates today:
January 11, 2017   A pair of updates today:
January 10, 2017   Here's the new stuff:
  • Updated the M-5 and OLD BS I-96 (unsigned trunkline) route listings to show the extension of M-5 into downtown Detroit and the resultant decommissioning of the OLD BS I-96 internal designation. Also recalculated the length of M-5 based on its newly-signed mileage.
  • Updated the date on the October 1969 historical items on the M-37 and M-44 route listings.
  • Added a February 1972 historical item to the M-6 route listing.
January 9, 2017   The latest website updates and additions:
January 5, 2017   Added a new April 1963 historical item to the I-96 and I-196 route listings.
January 4, 2017   Today's changes, additions and updates:
January 2–3, 2017   Here's what's changed or been added to the website today:
January 1, 2017   Happy New Year! Today's updates and changes to the website:
  • Updated the November-December 1962 historical item on the I-75 route listing.
  • Added new Dec 21, 1961 and Mid 1962 items and updated the December 1962 historical item to the I-96 and Historic US-16 route listings.
  • Updated the September and November 1962 historical items on the US-23 route listing.
December 27, 2016   The changes uploaded to the site today:
December 3–4, 2016   Here's what's changed or been added to the website today:
  • Updated the August 1963 historical listings and added new September 1963 items to the I-96 and US-31 route listings.
  • Updated the December 1962 historical items on the I-96 and Historic US-16 route listings.
  • Added a new July 1963 historical item to the I-96 route listing.
  • Updated the December 1963 historical item and added a new February 1964 item to the I-496 route listing.
  • Added a new February 1965 historical item to the I-194 route listing.
December 2, 2016   Today's list of website updates and additions:
December 1, 2016   Added new July 1986 and June 1989 historical items and updated the October 1989 item in the Capitol Loop route listing.
November 30, 2016   Another raft of updates to the website today:
  • Added a June 1988 historical item to the I-696 route listing.
  • Added a June 1988 historical item to the US-31 route listing.
  • Updated November 1971 historical items on the M-40, M-51 and M-119 route listings.
  • Updated the November 1971 historical items on the I-69 and Historic US-27 route listings.
  • Added October 1968 historical items and updated the August 1971 and December 1971 items on the M-21 and M-78 route listings.
  • Added December 1971 and June/September 1972 historical items to the M-21 route listing.
  • Updated the May 1977 and September 1997 historical items on the M-1 route listing.
November 29, 2016   Today's site updates:
November 27, 2016   Today's updates and changes to the website:
November 26, 2016   The following changes to the website were made today:
November 25, 2016   Today's updates and changes to the website:
November 24, 2016   Today's site updates:
September 22, 2016   Made minor modifications and updates to the M-35: The Highway Henry Ford Stopped article.
September 21, 2016   Converted the Early US-12, Willow Run, Detroit Industrial & Edsel Ford Freeways page from separate year-by-year histories of different segments of what became I-94 into one chronological history of I-94 before I-94 existed. (Mirrors the first portion of the history section of the I-94 route listing.)
September 8, 2016   Made several updates to the M-22 route listing, inclduing adding images of the new "M-less" M-22 route markers (to deter stolen signs) and another chapter in the long-running feud between the State of Michigan and M22, LLC over the ability to copyright the design of the M-22 route marker.
July 25, 2016   Updated the following pages and listings with information on the new West Michigan Pike Historic Byway which debuted today:
July 9, 2016   Added a new August 1961 historical item to the Historic US-27 route listing.
July 8, 2016   Added a new June 1958 historical item to the I-94 route listing and a new Nov 1957 historical item to the M-8/Davison route listing.
July 7, 2016   Updated the 1936 historical items in the US-23 and M-72 route listings. Also updated the M-171 information in the Master List.
June 30, 2016   Added a neat new tidbit I just discovered about the genesis of the route of M-49 through Hillsdale Co to the M-49 route listing!
June 15, 2016   Added a "new style" route listing for M-95 and made the necessary changes to the Routes 90–99 page. This listing also features a completely overhauled and updated history section and including an actual map of the route of M-95, too! Also created the M-95: Republic Mine Reroute (1958) page with a slider function to compare the 1955 and 1977 USGS Topographic maps for the Republic area.
June 8–9, 2016   A few updates to the website dealing with M-44:
  • Made several updates throughout the M-44 route listing to reflect its re-truncation in the Grand Rapids area.
  • Added an actual map of the route of M-44 as well.
  • Updated the M-21, M-37 and OLD M-21 (East G.R.) route listings to reflect the M-44 changes in the Grand Rapids area.
  • Also recalculated the lengths for all current state trunkline routes from US-24 through M-99 to the one-thousandth mile using official State of Michigan geographic information system data.
June 4–5, 2016   Here are the updates to the site from the weekend:
  • Almost completely overhauled and updated the history section of the M-45 route listing (in conjunction with the new M-95 route listing, currently under construction).
  • Added a new 1934 historical item and augmented the 1935 item on the US-45 route listing.
  • Added new information to the 1964 historical item on the M-50 route listing.
June 1, 2016   Added a "new style" route listing for M-94 and made the necessary changes to the Routes 90–99 page. This listing also features a completely overhauled and updated history section and including an actual map of the route of M-94, too! Also added a new 1976 item and made updates to the 1983 item in the history section of the US-2 route listing.
May 30-31, 2016   The latest updates and changes to the site:
May 26-27, 2016   Today's website updates and changes:
May 23–24, 2016   After months of research, an entirely overhauled and expanded I-94 route listing debuts. A complete historical timeline of ALL routes which eventually became part of I-94 has been incorporated. Also updated:
May 22, 2016   Today's updates and changes to the website:
March 27, 2016   Changes on the site today:
  • Updated the 1984 historical item in the I-69 route listing.
  • Updated the 1965 historical items in the M-66 and M-78 route listings.
March 26, 2016   A pair of changes on the site today:
March 24, 2016   Here's what's new on the site:
March 19, 2016   The following changes to the website were made today:
  • Added the exact date for the completion and opening of the Davison Expwy to the 1942 entry in the history section of the M-8 route listing.
  • Also added a "then-and-now" set of photos showing the Davison at Brush St from 1942 and 2015 to the M-8 route listing.
March 18, 2016   Made various updates and added new historical information to the 1930, 1933 and 1934 entries of the historical section of the M-153 route listing.
March 17, 2016   Added two new proposed-but-seemingly-never-implemented route designations to the Michigan Highways Master List: a second M-114 designation and a BUS M-14 routing, both at Ann Arbor.
March 15, 2016   Added a depiction of the 1964–1974 era exit signs that were posted along I-94 as part of the State Highway Dept's first attempt at numbering and signing interchanges in the 1960s to the Other Route Markers section of the Michigan's Route Markers page.
March 14, 2016   The following changes to the website were made today:
March 13, 2016   The following changes to the website were made today:
February 8, 2016   Updated an existing (Aug 1, 1957) and added a new (Nov 4, 1959) historical item to the I-96 and Historic US-16 route listings.
February 7, 2016   The following changes to the website were made today:
  • Added one new (Feb 1957) and updated an existing (June 30 1958) historical item to the I-75 route listing.
  • Updated an historical item (June 30 1958) to the US-23 route listing.
  • Updated an historical item (July 3–7, 1958) to the US-131 route listing.
  • Updated an existing (Nov 25, 1957) and added a new (July 3, 1958) historical item to the US-41 and M-28 route listings.
February 4, 2016   Uploaded a refreshed header image for the site.
January 24, 2016   Updated the July 27, 1971 entry in the history section of the I-96 route listing.
January 20, 2016   Updated the Oct 5, Nov 2 1962 entry on the US-131 route listing.
January 19, 2016   The following changes to the website were made today:
January 14, 2016   The following changes to the website were made today:
January 12, 2016   Updated and expanded an historical item (1959) in the history section of the US-127 route listing. Also added a new historical item (1966) to the M-50, BL I-94 (Jackson) and BUS US-127 (Jackson) route listings.
January 11, 2016   Added new historical item (1966) to the history sections of both US-127 and US-223 route listings.
January 10, 2016   Added a new historical item (1948) to the history of Former US-16.
December 31, 2015   Updated the Master List of all state trunkline designations in history with the designation of the Bancroft Spur from the 1930s: M-192.
November 30, 2015   Added a "new style" route listing for M-93 and made the necessary changes to the Routes 90–99 page. This listing also features a completely overhauled and updated history section and including an actual map of the route of M-93, too!
November 26, 2015   Added a "new style" route listing for Former M-92 and made the necessary changes to the Routes 90–99 page. This listing also features a completely overhauled and updated history section!
November 25, 2015   Completely overhauled, augmented and updated the history section of the M-49 route listing to better match the historical timelines of related routes M-36, M-92 and M-106.
November 23, 2015   Added actual route maps to the following route map pages:
November 22, 2015   Today's site updates:
November 21, 2015   Added a "new style" route listing for M-91 and made the necessary changes to the Routes 90–99 page. This listing also features a completely overhauled and updated history section!
November 20, 2015   Today's site updates:
November 19, 2015   More new and updated historical information added today:
  • Added some new historical information to the Early I-94 page, which details the historical development of what is now I-94 prior to its designation as I-94.
  • Updated the M-66 route listing and the M-14 route listing to add a more precise date for the decommissioning of M-14 and its replacement by M-66 in mid-Michigan.
  • Added a new historical tidbit to the M-94 route listing.
November 17, 2015   Some new historical information added today:
November 16, 2015   A pair of updates for today:
  • Added an interesting historical note to the M-28 route listing Notes section on a proposal to realign M-28 between Newberry and Munising, along with an accompanying map showing the proposal.
  • Added a heretofore unknown M-148 route designation to the Master List—to have served as an access route into Muskegon State Park via North Muskegon, but was likely never signed in the field.
November 13, 2015   A pair of updates for today:
  • Updated the Master List with an earlier incarnation of M-169 than had been previously known. This route was initially designated as "M-36 STUB," although it was highly unlikely it was ever signed as such in the field. Both the M-36 STUB and its eventual replacement, the newly-discovered first iteration of M-169, have been added to the list.
  • Added a "new style" route listing for M-90 and made the necessary changes to the Routes 90–99 page. This listing also features a completely overhauled and updated history section!
November 12, 2015   Added "new style" route listings for M-89 and M-134 and made the necessary changes to the Routes 80–89 and Routes 120–139 pages. These listings also feature completely overhauled and updated history sections!
November 3–8, 2015   Added "new style" route listings for M-84, M-85, M-86, Former M-87, and M-88 and made the necessary changes to the Routes 80–89 page. These listings also feature completely overhauled and updated history sections! Also added an entry for a newly-discovered M-163 designation from the early 1930s to the Michigan Highways Master List.
October 31, 2015   Made some updates to the M-231 route listing, including adding three pages of photos and a time-lapse video made from a bicycle five days prior to its opening to traffic. M-231 opened to traffic on October 30.
October 28, 2015   Added a "new style" route listing for M-83 and made the necessary changes to the Routes 80–89 page. This listing also features a completely overhauled and updated history section! Also made a few historical corrections/updates to the M-81 and M-82 route listings and added an M-231 Route Map to that listing as well.
October 26, 2015   Added a "new style" route listing for M-82 and made the necessary changes to the Routes 80–89 page. This listing also features a completely overhauled and updated history section! Also added additional information to the M-231 route listing regarding its dedication, non-motorized pathway and impending opening at the end of the week.
October 25, 2015   Added a "new style" route listing for M-81 and made the necessary changes to the Routes 80–89 page. This listing also features a completely overhauled and updated history section!
October 16, 2015   Based on feedback from a site visitor, a few corrections were made to the text on the Pure Michigan Byways page. –Thanks Michael!
October 13, 2015   M-231 in Ottawa Co is scheduled to open in the next few weeks. I've updated and/or overhauled the following M-231-related pages:
October 13, 2015   M-22 is selected as the No.1 Best Scenic Autumn Drive in USA Today's 2015 Reader's Choice Award Poll and the M-22 Route Listing is updated to reflect the award.
October 12, 2015   Made major updates to the Pure Michigan Byways (formerly the Heritage Routes) pages, including adding the new Pure Michigan Byways route marker, focusing:
August 17, 2015   Added a "new style" route listing for M-80 and made the necessary changes to the Routes 80–89 page. This listing also features a completely overhauled and updated history section!
August 7, 2015   Added "new style" route listings for M-78 and M-79 and made the necessary changes to the Routes 70–79 page. These listings also feature completely overhauled and updated history sections! Also made some significant alterations to the history sections for the following:
August 7, 2015   Added some new historical information to the US-223 route listing.
August 2, 2015   Added a "new style" route listing for M-77 and made the necessary changes to the Routes 70–79 page. This listing also features a completely overhauled and updated history section!
August 1, 2015   Added "new style" route listings for Former M-70 and Former M-76 and made the necessary changes to the Routes 70–79 page. These listings also feature completely overhauled and updated history sections! Also made some significant alterations to the history section of the M-55 listing.
July 30, 2015   Added "new style" route listings for I-75 and M-75 and made the necessary changes to the Routes 70–79 page. These listings also feature completely overhauled and updated history sections!
July 29–30, 2015   Updated the history sections of the M-13 route listing, US-23 route listing, US-31 route listing(several new historical updates and additions), and the I-696 route listing.
July 27–28, 2015   More updates and additions to the site today, including:
July 25–26, 2015   Updates some of the historical information on the following route listings:
July 20, 2015   Made the following changes, updates and corrections:
July 18, 2015   Made the following changes, updates and corrections:
  • Added "new style" route listings for M-72 and M-73 and made the necessary changes to the Routes 70–79 page. These listings also feature completely overhauled and updated history sections!
  • Added a "new style" route listing for Former M-208 featuring a complete history section.
  • Found an older routing of M-97 in Oscoda Co from the 1920s and added it to the M-97 route listing also updating the M-33 route listing as well.
  • Located some "official" information on the "un-signing" of I-296 in Grand Rapids and added it to the I-296 route listing.
July 10, 2015   Added a "new style" route listing for M-71 and made the necessary changes to the Routes 70–79 page. This listing also features a completely overhauled and updated history section!
July 6, 2015   Added a "new style" route listing for M-69 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section!
July 5, 2015   Added a "new style" route listing for I-69 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section!
July 4, 2015   Added a "new style" route listing for M-68 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section!
July 3, 2015   Added "new style" route listings for M-66 and M-67 and made the necessary changes to the Routes 60–69 page. These listings also feature completely overhauled and updated history sections! Also added new historical entries to the M-51 and M-53 route listings.
April 17, 2015   Added udpates to the following route listings, mostly with regard to jurisdictional transfers:
  • M-24 – updated the listing with the delayed transfer of a segment of the 1997 extension in Caro from village to state control in 2001.
  • US-27 & BUS US-127 (St Johns) – reflecting the actual transfer date of Price Rd as the temporary route for US-27 and the eventual route for BUS US-(1)27 at St Johns in 1996.
  • US-31 – added some language regarding the "temporary" transfer of Napier Ave in Berrien Co as well as added the actual date of transfer for OLD US-31 at Scottville in 1997.
  • M-32 – reflecting the transfer of a segment of OLD M-32 in eastern Otsego Co to local control.
  • M-50 – added the actual transfer date for the M-50 turnback in Monroe in 1996.
  • M-53 – reflecting the first jurisdictional transfer of a portion of OLD M-53 at Romeo in 2001.
  • M-66 & M-72 – reflecting the jurisdictional transfer of OLD M-66/M-72 in Kalkaska in 1996.
  • M-93 – reflecting the relocation of its southern terminus at Camp Graying in 2012.
  • M-99 – reflecting the route change through downtown Hillsdale in 2007.
  • US-131 – reflecting the jurisdictional transfer of a segment of OLD US-131 in Montcalm Co in 1996.
  • M-217 – added some more information and the precise date of the jurisdictional transfer
  • BL I-94 (Jackson) – reflecting the relocation of its eastern terminus east of Jackson in 2013.
  • OLD US-27 (Eaton Co) – reflecting the transfer of half of the route in 2008.
  • OLD US-131 (Mecosta-Osceola) – reflecting the transfer of the route south of Reed City.
March 13, 2015   Added a "new style" route listing for M-65 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section!
March 12, 2015   Updated the Tahquamenon Scenic Byway listing on the Scenic Heritage Routes page as it transitions from the old Tahquamenon Scenic Heritage Route name. Also updated the M-123 Route Listing to reflect the rebranding of the byway. Additionally checked all of the external links for each of the Heritage Route listings on the main Heritage Route, Scenic Heritage Route, Historical Heritage Route, and Recreational Heritage Route pages. Also added Heritage Route and Great Lake Circle Tours marker images to each of the individual route listings that feature mileage on those routes.
March 11, 2015   Updated the history section for the M-103 route listing with some "new" historical information.
March 9, 2015   Based on feedback from a site visitor, uploaded several minor corrections to a few newly-updated pages. —Thanks much Tom S!
March 5, 2015   Updated the Heritage Routes (Pure Michigan Byways) page to reflect passage of legislation rebranding of the program to the Pure Michigan Byways. Also added a "Pure Michigan Byways" category to each individual route listing page for all highway routes in the byways program. Additionally, made a few updates to the Lake Michigan Circle Tour and Lake Superior Circle Tour pages as well.
March 4, 2015   Added a "new style" route listing for M-64 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section!
March 1, 2015   Checked and updated many of the external links in the various In Depth: News & Articles section of the website.
February 28, 2015   Uploaded a new header graphic for the entire site. I figured a website on Michigan highways should at least have a graphic depiction of the State of Michigan in its header.
February 23, 2015   Added a "new style" route listing for M-63 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section! Also created a new M-63: Klock Rd Interchange Animation page with an looping animation of aerial images showing the interchange before and after its removal in 2001–02.
February 22, 2015   Added a "new style" route listing for M-62 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section!
February 21, 2015   Added a "new style" route listing for M-61 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section! Also added a bits of new route history to both the M-143 route listing and the M-109 route listing.
February 19, 2015   Added a "new style" route listing for M-60 and made the necessary changes to the Routes 60–69 page. This listing also features a completely overhauled and updated history section!
February 17, 2015   Added a "new style" route listing for M-59 and made the necessary changes to the Routes 50–59 page. This listing also features a completely overhauled and updated history section!
January 17, 2015   Added a "new style" route listing for M-58 and made the necessary changes to the Routes 50–59 page. This listing also features a completely overhauled and updated history section!
January 15, 2015   Added a "new style" route listing for M-57 and made the necessary changes to the Routes 50–59 page. This listing features a completely overhauled and updated the history section, too!
January 14, 2015   Happy New Year! Completely overhauled and updated the history section for the M-55 route listing, easily tripling the amount of information it contained.
December 1, 2014   Added new historical information to the Historic US-27, US-31, Historic US-33, and I-69 route listings. Added a "new style" route listing for M-55 and made the necessary changes to the Routes 50–59 page.
September 30, 2014   Added "new style" route listings for M-53 and M-54 and made the necessary changes to the Routes 50–59 page.
September 17, 2014   Uploaded "new style" versions of the placeholder pages for Routes 10-19, Routes 20-29, Routes 30-39, and Routes 40-49. No new content or information added, just making these pages match the new overall site design.
August 28, 2014   Added a "new style" route listing for M-52 and made the necessary changes to the Routes 50–59 page.
August 16, 2014   Several updates across the website:
May 21, 2014   Added a "new style" route listing for M-50 and made the necessary changes to the Routes 50–59 page. Added several links to historic bridge articles to the M-28 route listing weblinks section.
May 20, 2014   Added "new style" route listings for M-47, M-48, and M-49 and made the necessary changes to the Routes 40–49 page. Also made very minor tweaks to dozens of pages sitewide, inserting the HTML values for fractions (e.g. "½" instead of "1/2") and other similar changes.
May 15, 2014   Added links to the relavent Great Lakes Circle Tour pages to the new Great Lakes Circle Tour website.
April 29, 2014   Added a "new style" route listing for M-46 and made the necessary changes to the Routes 40–49 page.
March 19, 2014   Added "new style" route listings for M-44, US-45 and M-45 and made the necessary changes to the Routes 40–49 page.
March 11, 2014   Updated the link to the official Old Mission Scenic Heritage Route website on the Scenic Heritage Routes page.
March 3, 2014   Added a "new style" route listing for M-43 and made the necessary changes to the Routes 40–49 page. Also added a new entry to the history section of the M-37 route listing.
March 2, 2014   Added "new style" route listings for US-41 and M-42 and made the necessary changes to the Routes 40–49 page. Also added updated and new historical information and other data for the US-2, M-26, M-28, and M-35 route listings.
March 1, 2014   Added a "new style" route listing for M-40 and made the necessary changes to the Routes 40–49 page.
February 27, 2014   Added "new style" route listings for M-37, M-38 and M-39 and made the necessary changes to the Routes 30–39 page.
January 13, 2014   HAPPY NEW YEAR! Added a "new style" route listing for M-36 and made the necessary changes to the Routes 30–39 page.
December 26, 2013   Added "new style" route listings for M-33, M-34 and M-35 and made the necessary changes to the Routes 30–39 page.
December 25, 2013   MERRY CHRISTMAS! Added a "new style" route listing for M-32 and made the necessary changes to the Routes 30–39 page.
December 3, 2013   Added "new style" route listings for M-30 and US-31 and made the necessary changes to the Routes 30–39 page. Also added new historical information to the US-31 route listing as well.
November 29, 2013   Added information on the proposed relocation of M-28 in the Marquette area to the M-28 route listing as well as the M-28: Possible Relocation near Marquette map to both the Maps page and the M-28 route listing. Additionally, the erroneous M-24 route listing was fixed with many thanks to Michael G. for the heads-up on that!
November 13, 2013   Added additional statistics on the numbers of Michigan Lefts in the state and left-turn crash statistics from the FHWA to the Michigan Left Turn page. Added "new style" route listings for M-28 and M-29 and made the necessary changes to the Routes 20–29 page.
November 4, 2013   Added a "new style" route listing for M-27 and made the necessary changes to the Routes 20–29 page.
November 3, 2013   Added "new style" route listings for M-26 and US-27 and made the necessary changes to the Routes 20–29 page.
November 2, 2013   Made minor updates to the Introduction page. Also added "new style" route listings for US-23, US-24, M-24, and M-25 and made the necessary changes to the Routes 20–29 page.
November 1, 2013   Created a "before and after" animated map of the US-131 Constantine Bypass and included links to it on the following pages:
October 30, 2013   The US-131 bypass of Constantine opened to traffic today, which necessitated the following site updates:
October 28, 2013   Added "new" historical information regarding the history of the state route marker to the Michigan's Route Markers page. Also added a "new style" route listing US-23 (including adding some "new" historical information regarding State Highway Dept plans for the route of US-23 during the 1960–1980 timeframe) and made the necessary changes to the Routes 20–29 page. Additionally, revised the article "The Tug-of-War That Was the US-23 Freeway" to use the past tense to more accurately protray it in a historical light, as the project has been officially cancelled for over a decade.
October 27, 2013   Added "new style" route listings for M-21 and M-22 and made the necessary changes to the Routes 20–29 page. Also began added "new" historical information regarding State Highway Dept plans for individual trunkline routes during the 1960–1980 timeframe to the US-2, US-12, M-13, M-14, M-15, M-17, M-18, M-19, M-20, M-21, and M-22 route listings. In addition, new pieces of historical information were added to the M-1, M-8, M-10, Historic US-16, and I-96 route listings.
October 26, 2013   Overhauled the National Highway System (NHS) page in the In Depth section to include the major changes to the system implemented under the MAP-21 transportation funding legistlation enacted in 2012. Also added a "new style" route listing for M-20 and made the necessary changes to the Routes 20–29 page.
October 25, 2013   Added a "new style" route listing for M-19 and made the necessary changes to the Routes 10–19 page. Also overhauled the National Highway System (NHS) information for each route from 1 through 19, including: M-1, M-3, US-10, US-12, M-13, M-15, M-17 , and M-19. As route listings are migrated to the "new style," the NHS information (among all of the other sections) will be revised with the new additions to the NHS under MAP-21.
October 22, 2013   Added a "new style" route listing for M-18 and made the necessary changes to the Routes 10–19 page.
October 1, 2013   Modified the M-108 route listing into the Former M-108 route listing to reflect its transfer to local control in 2010. (Not sure why this one slipped through the cracks!) Thanks to Dave S for pointing out the oversight!
September 3, 2013   Added "new style" route listings for US-16 & M-16 and M-17 and made the necessary changes to the Routes 10–19 page.
August 28, 2013   Added a "new style" route listing for M-15 and made the necessary changes to the Routes 10–19 page.
August 12, 2013   Updated weblinks for two of the NWMCOG-maintained Heritage Routes: M-22: Leelanau Scenic Heritage Route and M-119: Tunnel of Trees Scenic Heritage Route. —Thanks Michelle for the heads-up! Also added a quick-reference table of the various Heritage Routes to the main Heritage Routes (Michigan's Byways) page.
July 23, 2013   In what seems to be a recurring theme, another site visitor wrote in to report a few broken links on the Intercounty Highways page, which have been corrected. —Thanks Mike G for the heads-up!
July 23, 2013   Made a few corrections to some of the history of the Willow Run Expressway on the Early Willow Run, Detroit Industrial & Edsel Ford Freeways page. —Thanks Warren for the heads-up!
July 17, 2013   Corrected a typo on the History of Michigan Roads (page 2). —Thanks Steven for the heads-up!
July 8, 2013   Added "new style" route listings for M-13 and M-14, and made the necessary changes to the Routes 10–19 page.
July 5, 2013   Added "new style" route listings for M-10, M-11, and US-12 and made the necessary changes to the Routes 10–19 page.
July 2, 2013   Added "new style" route listings for M-6, US-8, M-8, US-10, and US-131 and made the necessary changes to the Routes 1–9 Listings and Routes 10–19 pages. Also corrected a slight error and added a new historical note on the M-5 route listing. And based on several e-mails from site visitors (thanks Erik, Nathan and Rob!), I was able to update the M-143 route listing, the Master List and Unsigned Routes pages with the fact that M-143 is, once again, signed in the field!
July 1, 2013   Added the M-5 "new style" route listing to the site and made the necessary changes to the Routes 1–9 Listings page.
May 22, 2013
BIG NEWS
  Added the first three "new style" route listings pages to the site. Since 1997, the Route Listings have consisted of multiple routes (sometimes more than a dozen) per listings page. For example, the Routes 120–139 page not only contains complete details on 13 different routes, but included listings for US-127 and US-131, each of which were quite lengthy in their own rights! With more information being added to many of the listings, including "new" historical data, there seem to no longer be any benefit to breaking down the listings into "ranges" as has been done for the past 16 years. As such, I have begun the long process of separating each listing out into its own page. The first three "new style" route listings to be added to the site are: M-1, US-2, and M-3. At present I am planning on also including separate pages for each former state trunkline highway route as well (e.g. Former M-4). Doing so should allow me to pare down the information on the Master List page a bit, too.

Also made a few updates to the US-31 Freeway in Berrien County article (including adding sub-headings to break up the article a bit) and added the Controlled-Access Highways article to the In Depth section page.
May 21, 2013   In preparation for the "new style" route listings (one route per page), I've added the Controlled-Access Highways page to the In Depth section to help define and differentiate Freeways and Expressways (e.g. Controlled-Access highways and Limited-Access highways).
April 20, 2013   Finally brought the homepage over to the new site style including three new illustrative photos. (The old homepage images had been on there for almost a decade!) Also moved the blurb about being featured in Michigan History magazine to the About This Site page.
March 22–
March 29, 2013
  The majority of the website redesign/refresh work in this timeframe has been on pages in the Other Routes section, some of which have received substantial updates and improvements:
March 15–
March 21, 2013
  Quite a bit more of the site has been converted over to the new design. As each page is converted, all external links are being checked and verified and in many instances new content is being added to either bring the information up-to-date or to augment what's already there. Examples of updated or expanded pages and articles include:
  • Related LInks - All links checked, dead links removed, and several new links added.
  • County Routes & Listings - New "index page" for all things county route-related in Michigan.
  • Intercounty Highways - Moved to a new URL.
  • County Routes - No content yet, but this will become an informational catch-all on the various county route systems other than the Intercounty Highway System (which has been covered on this site for many years).
March 14, 2013   Finished adding all of the current, former, and unsigned Intercounty Highway routes to the Master List: 1918–Present. Still a lot more work to go on the list, though...
March 11–
March 13, 2013
  Changed over more of the site to the new design. Most of the pages under the first drop-down navigation menu ("Michigan's Highways") have been converted over, including:
February 28–
March 11, 2013
  Applied the new site design to more of the website. Instead of listing the individual pages here (that list is getting quite long), suffice it to say that many of the pages have been converted. This includes everything under the In Depth: News & Articles and About This Site headings and additional pages elsewhere. In the process of updating the design, however, some pages and articles have undergone updates or, in a few cases, complete overhauls, including:
February 28, 2013   Started debuting a new overall design and style for the Michigan Highways website. (Additional and continued tweaking will likely take place over the coming weeks and months, though!) The new pages so far are:
February 23, 2013   Updated additional notes in the US-10 and M-10 route listings. Also cleaned up and added new external links on the Highways 10-19 page.
February 21, 2013   Updated a note in the US-10 route listing. Also cleaned up and added new external links on most of the route listings on the Highways 1-9 page.
February 14, 2013   Updated and added new historical information to the I-69 route listing.
January 17, 2013   Took care of a little external link clean-up in the M-1, US-2 (West) and US-2 (East) listings.
January 14, 2013   Added the Diagonal Highways, 1935-36 article to the In Depth section and a larger version of the Diagonal Highways Map, 1936 to the Maps section.
January 13, 2013   Five updates or additions:
  • Added a new Capitol Loop Route Map showing the route and termini of the Capitol Loop in downtown Lansing as well as other information.
  • Updated the Capitol Loop route listing to include links to the new map.
  • Overhauled the Downtown Detroit Trunklines map with minor updates.
  • Updated the Maps page with the new and updated maps.
  • Added a new historical photo of the US-2 interchange at the northern end of the Mackinac Bridge approach roadway (now part of I-75) to the Mackinac Straits Historical Photos page.
  • Uploaded the first new background image for the sitewide header graphic since 2008. (This is a portion of the new historical photo added to the Mackinac Straits Historical Photos page, noted above.)
December 23, 2012   Added notes to the BUS US-223 and Capitol Loop route listings.
December 20, 2012   Updated all of the individual listings on the Heritage Routes page, and added new ones that were missing.
December 11, 2012   Here's some more good stuff:
December 3, 2012   Three more updates:
  • Added information on a segment of I-75 winning the "Parade Magazine Scenic Highway Award" for 1964, selected as the year's finest example of a "driver's road" for scenery, speed and safety from across the country.
  • Updated the M-152 route listing with additional information about its longtime status as a turnback candidate.
  • Made a minor update to the FUTURE M-231 listing.
December 2, 2012   Updated the US-131 route listing for 1956 and 1968 to reflect new historical information on the former four-lane divided segment north of Mancelona. Also updated the Michigan Official Maps: Christopher Bessert Collection listing.
November 30, 2012   Updated the M-168 listing to reflect its decommissioning and transfer to local control in April and amended the Master List accordingly.
November 22–
November 25, 2012
  FINALLY made some long-awaited updates to a few of the route listings on the site, including:

Also added a Niles Area Highways: 2010– map showing an overview of the highways in the Niles area.

November 19, 2012   Updated, corrected and augmented the information on the Great Lakes Circle Tours, Lake Michigan Circle Tour, and Lake Superior Circle Tour pages.
January 2, 2012   Corrected the "contact" e-mail address on the Corrections & Feedback page. Also added the "As featured in the 'Webwatcher' column of the January/February 2012 Michigan History magazine" blurb on the homepage.
December 6, 2011   Fixed an unfortunate gaffe with the domain name... it works again! Also updated the "contact" e-mail address in the footer at the bottom of each page. Minor modifications of the homepage text to reflect that the "recent" website redesign was actually several years ago.
November 21, 2008   Uploaded a new background image for the sitewide header graphic.
September 28, 2008   Updated the route length figures for ALL of the Intercounty (County-Desingated) Highways on all three listing pages: A-2 – C-81, D-19 – H-15, and H-16 – H-63. The mileages were calculated using State of Michigan data to one-thousandth of a mile, then rounded to the nearest one-hundredth of a mile as per the existing conventions on this site.
June 24, 2008   Updated the M-107 Route Listing to reflect its transfer to local control on June 4, as well as updating the Master List to show the change.
May 30, 2008   Added a page to the Photos section featuring new non-freeway Clearview trunkline signage in St Joseph Co.
May 5, 2008   Made several minor updates to the M-21 route listing.
April 9, 2008   Made some minor changes to the County Highways page, added some information to several listings on the County Highways A-2 - C-81 page, and some minor modifications to the county route marker descriptions on the Route Markers page.
January 1, 2008   Happy New Year! Made a few sitewide changes for the New Year, including updating the copyright in the footer at the bottom of every page.
December 17, 2007   Verified all of the links on the Related Links page. Corrected broken or misdirected links as necessary.
December 15, 2007   Updated the M-121 route listing to change it's status from "former" to "current" with the redesignation of OLD M-21 between Zeeland and Grandville as M-121. Also updated references to the new M-121 on the M-21 route listing, the US-31: Ottawa County page and the Master List section. Removed OLD M-21 (Ottawa) from the Unsigned Trunklines page.
November 3, 2007   Updated the route listings for M-38 and M-64 to reflect the jurisdictional transfer of former trunkline segments related to the new Ontonagon River Bridge. Removed OLD M-38 and OLD M-64 from the Unsigned Trunklines page.
November 2, 2007   Updated the BS I-96 (Portland), I-96 and Master List 1918-Present pages to reflect the decommissioning and jurisdictional transfer of Portland's BS I-96 to local control.
July 8, 2007   Updated the BUS US-31 (Muskegon) route listing in response to the jurisdictional transfer in downtown Muskegon as well as the M-46 route listing because of the changes to its western terminus. Also updated the M-42 route listing with more changes resulting from its truncation to Manton in June.
June 15, 2007   Added the M-37 Scenic Heritage Route to the Heritage Routes page and also updated the M-37 route listing.
June 14, 2007   Updated the information in the M-42 route listing regarding the jurisdictional transfer of the Manton-to-Mesick segment. Also added a new OLD M-42 listing to the unsigned trunklines page.
May 28, 2007   Added additional information to the M-42 route listing about the pending jurisdictional transfer of the Manton-to-Mesick segment. Also updated the BUS US-131 (Grand Rapids) listing and made a minor correction to the OLD US-131 BR listing on the unsigned trunklines page.
May 27, 2007   Updated the M-42 route listing to reflect the pending jurisdictional transfer of the part of that route from Manton westerly to Mesick.
March 15, 2007   Updated the Unsigned Trunklines page to include the new OLD M-38 and OLD M-64 listings. Also augmented the County-Designated (Intercounty) Highways page with several photographs.
February 26, 2007   Updated the OLD I-69 (OLD M-78) route listing to reflect its truncation to Perry.
February 6, 2007   Corrected a slight error in the Unsigned Connectors section of the Unsigned Trunklines page. (Thanks, Tim!) Also added new information to the OLD I-69 (OLD M-78) unsigned trunkline route listing.
January 8, 2007   Added two links to an article in Michigan Historymagazine about the dedication of the Gerald R Ford Freeway to the I-196 route listing.
January 2, 2007   Happy New Year! Made a few sitewide changes for the New Year, including updating the copyright in the footer at the bottom of every page.
December 21, 2006   Updated the US-23 and BUS US-23 (Fenton) route listings as well as the Master List to reflect the decommissioning of BUS US-23 at Fenton.
December 14, 2006   Updated the information related to the 2004 Holland business route jurisdictional transfer on the following pages: Holland Business Routes: The Turnback and BL I-196 (Holland-Zeeland). Also updated the route listings for M-38, US-45 and M-64 to reflect the opening of the new Ontonagon River Bridge as well as updating the Ontonagon State Trunkline Changes 2006 map.
November 25, 2006   Updated the US-31 route listing, US-31 in Ottawa County article and Master List 1918-Present page with information on the proposed M-231, as well as created a new Future M-231 route listing.
November 2, 2006   Updated the M-36 route listing and the Historic US-27 (Page 2) listing with new historical information.
October 22, 2006   Made a few minor modifications to the Michigan Left page, corrected an incorrect link to the County Highways D-19—H-15 listings page on most of the other route listings pages, and completely overhauled the design of the Heritage Routes page. Also migrated the remaining route listing pages to the "new" page format introduced in October 2005, verifying all external links and correcting invalid ones:
October 9, 2006   Migrated the following pages to the "new" page format introduced in October 2005, verifying all external links and correcting invalid ones:
October 8, 2006   Created new route marker graphics for the three-digit US Highways (US-127, US-131, US-141 and US-223) and migrated the following pages to the "new" page format introduced in October 2005, verifying all external links and correcting invalid ones:
October 7, 2006   Migrated the Highway Listings 80-89 and Highway Listings 90-99 pages to the "new" page format introduced in October 2005. In the process, various external links were verified and corrected, if necessary.
October 6, 2006   Even more updates today:
October 5, 2006   Several more updates today:
October 4, 2006   Several updates today:
  • Updated the Heritage Routes page, adding new links, fixing broken ones and calculating mileages.
  • Added information to the US-41 route listing regarding the Scenic Heritage Route and National Scenic Byway designations.
  • Migrated the Highway Listings 30-39 page to the "new" page format introduced in October 2005. In the process, various external links were verified and corrected, if necessary.
September 25, 2006   Minor update to the History section of the M-116 route listing.
September 24, 2006   Major addition to the site: a comprehensive article "The History of Roads in Michigan" by Dorothy Pohl & Norman Brown. Minor update to the Historical Overview page and added a new Photos page.
September 17, 2006   Added the M-26 at South Range photo pages with 22 pictures of the existing route of M-26 being superceeded by a new alignment in 2006.
September 12, 2006   Added the US-2 Is NOT A Freeway photo page with three pictures of new signs along US-2 WEST in St Ignace.
August 23, 2006   Updated two links, one each in the M-10 and US-12 route listings. Also added new information to the M-53 route listing.
August 5, 2006   Heavily-updated the H-58 route listing with new information. Updated the BUS US-23 (Fenton) listing as well. Also migrated the Highways 10-19 and Highways 20-29 pages to the new design style.
July 31, 2006   Added an historic photograph to the Historical Overview page.
July 17, 2006   Added the designation as the Purple Heart Trail to the I-69 route listing.
April 14, 2006   Updated Michigan Official Maps: Christopher Bessert Collection.
March 28, 2006   Updated the M-26 route listing with new infomation regarding a realignment project at South Range. Also uploaded a new overview map of the project to the Maps page.
March 25, 2006   Updated a link on the Related Links page.
March 14, 2006   Updated the listing for OLD M-65 on the Unsigned Trunklines page to reflect its transfer to local control on March 9.
February 27, 2006   Added Michigan Official Maps: Christopher Bessert Collection.
February 23, 2006   Updated the M-44 route listing with a new historical tidbit. (Thanks Dan M!)
January 12, 2006   Updated the US-41 route listing to reflect the completion of the Interstate Bridge project linking Menominee and Marinette, Wisc. Also made a few other corrections/updates to the US-41 and M-40 route listings.
January 7, 2006   Overhauled the Forest Highways page, converting it to the "new" Michgigan Highways website style from October 2005. Also converted the Highways 1-9 route listings page to the new style as well.
January 2, 2006   Happy New Year! Made a few sitewide changes for the New Year, including updating the copyright in the footer at the bottom of every page.
December 30, 2005   Updated the link to Eric Buchanan's Michigan Highways Photos website on the Related Links page.
December 9, 2005   Several changes/updated/additions today:
November 27, 2005   Completely overhauled and extensively revised the Unsigned Trunklines & Connectors page. Also corrected links in the M-1 route listing.
November 21, 2005   Made several changes and updates to the M-154 route listing.
November 19, 2005   Completely overhauled and updated the history section for the M-99 route listing as well as making several updates to the M-106 route listing.
November 17, 2005   Updated the M-168 listing to reflect its impending transfer to the Village of Elberta in 2010. Also updated the homepage and added a link and graphic for the MSP Winter Road Conditions website.
November 10, 2005   Added a brand-new map of Downtown Detroit Trunklines to the Maps section as well as linked from the M-1, M-3, M-10, US-12, M-85, I-375 and BS I-375 listings.
November 9, 2005   Added new entries to the history sections of the M-43 and US-131 route listings. Also added a one new link and updated the URL on another on the Links page; made a minor update to the M-185 route listing; corrected/updated information on the BUS US-131 (Manton) listing.
October 30, 2005   Uploaded Michigan State Trunkline Record Holders (PDF) and added a link to it on the Michigan's State Trunkline System page.
October 29, 2005   Added a map showing the County-Designated Highway Zone System to the County Highways page.
October 15–
October 26, 2005
  Updated the overall design of the entire website, including a new title graphic featuring the Mackinac Bridge, an updated set of navigation menus on the left side of most pages and some tweaks to the style sheets. Along with these changes, several pages were overhauled or updated, including:
October 14, 2005   Made a few corrections to the M-99 listing and the M-174 description on the Master List: 1918-Present. (Thanks Richard!) Also uploaded a new design for the homepage.
October 11, 2005   As a result of the several jurisdictional transfers in Marquette yesterday, the following route listings have been updated: M-553, M-554 and BUS US-41. Also updated with these changes is the Master List: 1918-Present.
October 4, 2005   Added information about a proposed trunkline extension to the M-32 and C-48 listings.
September 17, 2005   Added new or updated existing listings in the Master List 1918-Present page, including M-130 EXTENSION (new), M-170 (new), M-172 (new), M-173 (updated), and M-218 (updated). Also added some new historical information to the M-117 listing and added a new OLD US-127 listing to the Unsigned Trunklines page.
September 12, 2005   Added a new link to Eric Buchanan's Michigan Highways Photos website and updated another link on the Related Links page. Also added a new photograph to Page 2 of the Michigan Left pages and additional text on the primary Michigan Left page.
August 23, 2005   Added a link to Nathan Holth's Historic Bridges of Michigan and Elsewhere site to the Related Links page. Also made several minor corrections to the Master List: 1918-Present page.
August 21, 2005   Completely overhauled the History section in the US-31 route listing, literally quadrupling the amount of information presented.
August 16, 2005   Added two new articles to the In-Depth section (also linked from the US-31 listing): Also added a brand-new H-11 listing to the D-19 - H-15 page and also updated the H-13 and H-58 listings. (Thanks Robert!)
August 11, 2005   Updated the History section of the M-1 listing with a jurisdictional transfer date. (Thanks Patrick!)
July 20, 2005   Uploaded a brand-new page, M-26: Eagle River Timber Bridge (1991), to the In Depth section.
July 19, 2005   Added links to Kevin Musser's "Three Spans over the Portage" article about the Houghton-Hancock Lift Bridge to the M-26 listing, US-41 listing and the Related Links page (Michigan's Bridges & Ferries section).
July 18, 2005   Added some new/updated information to the history portion of the M-78 route listings.
July 16, 2005   Made the following changes:
July 14, 2005   Minor corrections made to the M-311 listing. (Thanks A.J.!)
July 3, 2005   Revamped and revised Historic Auto Trails: Page 2, including adding representations of the auto trails markers and pole markings.
June 18, 2005   Added a link to the Route Markers page leading to the Michigan's Changing Route Marker Styles page at Barry Camp's website.
June 12, 2005   Completed the following:
June 11, 2005   Fixed a few typos in the C-58 route listing. (Thanks, Robert!) Also made minor updates/corrections to the M-17 and BUS US-23 (Ann Arbor) listings. (Thanks, Eric!)
June 9, 2005   Updated the US-12 listing to reflect the jurisdictional transfer of a portion of the route in Detroit on June 8th. Also completed revisions to the following listings or pages to reflect jurisdictional transfers in the City of Holland:
May 6, 2005   Updated the M-37 listing to reflect the jurisdictional transfer of a portion of the route in Battle Creek two days prior.
May 4, 2005   With the debut of a brand-new BUS US-31 route at Ludington, the following listings were revised: BUS US-31 (Ludington), US-31 listing, and OLD US-31 listing.
April 30, 2005   Added information to the M-37 listing regarding a pending jurisdictional transfer in Battle Creek and also added a link to the M-37: Hastings-Battle Creek page to the same listing.
April 23, 2005   Added Michigan's Route Markers: The Clearview Future? to illustrate what the state's route markers may look like in the future;
Added information about the Lodge Frwy's new exit numbers to the M-10 listing;
Added information regarding the impending jurisdictional transfers impacting US-41, BUS US-41, M-553 and M-554 in the City of Marquette to those respective listings.
Updated the Lake Michigan Circle Tour page and US-10 listing to reflect the removal/decommissioning of the LMCT Loop route through downtown Scottville.
April 17, 2005   Fixed a few inconsistencies in the US-31 history listing. (Thanks Robert!)
March 23, 2005   Added an updated length to the M-3 listing and fixed several other minor errors. (Thanks A.J.!)
March 20, 2005   Updated the Unsigned Trunklines page to reflect the turnback of the rest of OLD M-21 in St Clair Co.
February 23, 2005   Updated the I-69 route listing and the Recreational Heritage Route listing on the Heritage Routes page with new information regarding the addition of I-69 as such a route.
February 7, 2005   Added a new link to the Links page.
January 23, 2005   Minor changes to the Lake Michigan Circle Tour and Lake Superior Circle Tour pages.
January 18, 2005   Minor changes to the Unsigned Trunklines and Master List pages.
January 17, 2005   Added new information to the history section of the M-62 listing. Also added information about LeRoy Barnett's new book on the Memorial Highways page.
January 15, 2005   Added new information to the history sections of the M-3, M-35 and M-97 listings.
December 11, 2004   Minor updates to M-28, US-41, M-123 and M-203 route listings.
December 5, 2004   Made changes/corrections to the M-59 and BUS US-23 (Fenton) listings; also made additions to the still-unfinished Unsigned Trunklines page.
December 4, 2004   Finally added a page on the Michigan Polar-Equator Trail.
November 27, 2004   Added a new page cataloguing the various types of Michigan Route Markers. Also updated each of the Great Lakes Circle Tours pages with new route marker graphics: Lake Erie, Lake Huron, Lake Michigan and Lake Superior.
November 17, 2004   Updated the M-6/South Beltline listing to reflect the completion of that freeway as well as a three-page set of photographs from the ribbon-cutting ceremony.
November 11, 2004   Added information to the US-41 listing regarding the Interstate Bridge replacement project; included additional historical information in the US-131 and M-119 listings.
November 7, 2004   Uploaded new historical updates to the M-21 and M-51 route listings.
October 27, 2004   Added a new item to the history section to the M-99 listing.
October 26, 2004   Added clarifications regarding route termini to the US-24 and M-59 listings; updated the M-132 listing on the Master List: 1918-Present; updated nearly a dozen pages to change the "Connect to" links for routes entering Indiana to point to the Indiana Highway Ends site, including US-12, US-31, M-51, M-62, M-66, I-69, I-94, M-103, US-131, Former M-205 and M-239; updated the M-6 listing with some additional information.
October 24, 2004   Added the complete listings pages for the remaining two county-designated highway pages: D-19 through H-15 and H-16 through H-63.
October 17, 2004   Added the complete listings page for county-designated A-2 through C-81 as well as completed the Historical US-27 Overview page.
October 13, 2004   Completed the move of the Michigan Highways Master List 1918-Present from the old website to the new one. The Master List was completely overhauled, improved and updated and now features links to all of the individual highway listings.
October 10, 2004   Completed the Business 95-496 page, the last of the Business Connections pages! Also uploaded a page of Mackinac Straits Historical Photos. Also updated the M-65 listing.
September 25, 2004   Made several minor modifications to the US-131 and BUS US-31 (Holland) listings.
August 30, 2004   Completed the Business 32-94 page with the remaining route listings uploaded. Also verified, updated and corrected links in the various highway listings linking to Dan Garnell's Michigan Highway Ends website.
August 20-22, 2004   Uploaded the first two-thirds of the listings on the Business 32-94 page (from BUS M-32 through BS I-75 Sault Ste Marie); updated the BUS M-28 and BUS US-31 Holland listings; added the Holland Business Routes: The Turnback page to the In-Depth section.
August 14, 2004   Added a few additions to the US-31 listing; made typographical corrections to the US-10, M-22, M-66 and M-78 listings. (Thanks to John and Brian for the heads-up on those!)
July 28, 2004   Uploaded new Michigan Left: Photos & Plans page to accompany the existing Michigan Left-Hand Turn page. Also added navigation and made slight revision to main Michigan Left page.
July 18, 2004   Added a few clarifications and corrections to the US-131 history listing; added a new entry to the US-23 history listing; added information for the newly-designated US-12 Historic Heritage Route and US-23 Sunrise Side Coastal Highway in the US-12 and US-23 listings (respectively) and on the Heritage Routes page; also overhauled the Heritage Routes page with new graphics and information; made a few updates to the Historic US-16 Page 2 as well.
July 6, 2004   Uploaded complete Business Connections 2-31 page as well as minor corrections to Highways 200-229 page and a new graphic for the Michigan Left-Hand Turn page.
June 26, 2004   Minor correction to the M-59 listing on the Highways 50-59 page.
June 6, 2004   The Highways 250-696 page is completed, which completes the listing pages for all mainline routes. Also made an addition to the I-96 listing.
May 24, 2004   Updated the M-120 listing to more accurately reflect it being signed as an east-west highway in the field; added two new history listings to M-183 listing; uploaded the completed Highways 200-229 and Highways 230-249 pages.
May 21, 2004   Uploaded the fully-completed Highways 180-199 page.
May 20, 2004   Added two "historic" state trunkline planning maps from 1951 and 1968 to the Maps page.
May 13, 2004   Uploaded fully completed Highways 140-159 and Highways 160-179 pages and the first two listings (M-183 and M-185) on the Highways 180-199 page, added additional history information to M-120 listing, fixed broken links on Michigan's Trunklines page.
May 6, 2004   Debuted the Proposed M-37 Hastings-Battle Creek Expressway article in the In-Depth Section, including a Map of the proposed highway. Modified the M-37 and M-43 listings as well.
April 27, 2004   Minor correction on Historical Overview page, added link to US-23 listing and the Links page, and fixed a broken link in the M-20 listing.
April 22, 2004   Added an additional link to the Links page. Also make a slight update to the US-127 listing based on site contributor feedback.
April 10, 2004   Completely overhauled the Links page, tripling it in size and making it easier to navigate... hopefully.
April 9, 2004   Corrected a few items in the US-31 route listing on the Highways 30-39 page due to contributor feedback. Also made a minor correction on the About This Site page.
April 5, 2004   Completed the remainder of the listings on the Highways 129-139 page.
April 3, 2004   Added listings for M-120 through US-131/M-131 to the Highways 120-139 page.
April 1, 2004   Updated the history section for M-116 to include some newfound information.
March 24, 2004   Added the remainder of the route listings to the Highways 100-119 page as well as the beginnings of the Historic US-102 and Historic US-112 pages.
March 22, 2004   Added all of the listings to the Highways 90-99 page and the listings for M-100 through M-107 on the Highways 100-119 page.
March 15, 2004   Added all of the listings to the Highways 80-89 page.
March 14, 2004   Added all of the listings to the Highways 70-79 page.
February 28, 2004   Added the remaining listings to complete the Highways 60-69 page.
February 17, 2004   Added listings for M-61, M-62 and M-63 to the Highways 60-69 page. Also added updates/corrections to the US-31 and US-33 listings.
February 8, 2004   Added complete Highways 50-59 page.
January 18, 2004   Added the remaining listings (M-46, M-47, M-48 and M-49) to the Highways 40-49 page.
January 18, 2004   Added the M-43, M-44, US-45 and M-45 listings to the Highways 40-49 page.
January 14, 2004   Added the US-41 and M-42 listings to the Highways 40-49 page.
January 7, 2004   Added two new links to the Links page and updated several links to maps on the Maps page. Also added the first listing to the Highways 40-49 page.
December 26, 2003   Completed the Highways 30-39 page and added the M-35: The Highway Henry Ford Stopped article to the In Depth section.
November 11, 2003   Added the next three listings to the Highways 30-39 page and completed the Historic US-33 page.
November 9, 2003   Added the first two listings to the Highways 30-39 page and a Map of the US-31 Freeway in Berrien County to the Maps page.
November 1, 2003   Added the remaining route listings to the Highways 20-29 page as well as completed the Historic US-25 pages and much of the Historic US-27 pages.
October 22, 2003   Completed the Zilwaukee Bridge section of the website, including the inclusion of the entire 1987 MDOT report The Zilwaukee Bridge: From the Beginning.
October 17, 2003   Added two pages containing aerial imagery off the Zilwaukee Bridge main page. They are:
October 12, 2003   Updated the listing for M-8 in Detroit to include the date of jurisdictional transfer of the route to the state.
October 5, 2003   Added the first "Historic US Highway" page for US-16 and updated corresponding pages: Highways 10-19 and Listings page.
September 27, 2003   Corrected the Highways 1-9 page to reflect the 2001 route changes to M-3 in downtown Detroit. Also added two more route listings to the Highways 20-29 page.
September 26, 2003   Added the Highways 20-29 page with the first four route listings.
September 25, 2003   Added the Tug of War That is the US-23 Freeway page about the proposed "freeway-ization" of US-23 from Standish to Oscoda.
September 21, 2003   Added the final three listings to the Highways 10-19 page.
September 19, 2003   Added an updated map of the US-131 Manton Bypass to reflect its opening to traffic on that day.
September 16, 2003   Added the Highways 10-19 page with the first seven route listings. Also, uploaded new versions of the route marker symbols used in the website.
September 14, 2003   Added the Highways 1-9 page.
July 20, 2003   New website "officially" unveiled to general public.
Nov. 2002–July 2003   New website created.
November 24, 2002   Domain "michiganhighways.org" registered.
June 1997 through July 2003   Previous versions of website, hosted at AOL.
c.1987–1992   "Michigan's Route Numbered Highays"—the first digital Michigan Highways listing created using AppleWorks software on Apple IIe. View the 1990–91 Edition.
c.1985   First pre-Internet proto-Michigan Highways listing created... as a typewritten list of all Michigan state trunkline highways on a typewriter in the webmaster's mother's classroom at Highlander Way Middle School in Howell, Michigan.