Wikipedia:WikiProject U.S. Roads/U.S. Routes/History
Changes between October 30, 1925 report and November 11, 1926 final system
edit(both are available in PDF format at the ushwys Yahoo Group, and in table form at us-highways.com) Changes in route may not be listed, only changes in termini.
| US 1 | |
| US 2 | 1927 doesn't include the short piece in New York |
| US 3 | |
| US 4 | west end moved from Fort Edward, NY to Glens Falls, NY |
| US 5 | |
| US 6 | west end moved from Brewster, NY to CT/NY line; west section (Kingston, NY to Erie, PA) added |
| US 7 | south end moved from Mount Vernon, NY to Norwalk, CT |
| US 8 | added |
| US 9 | north end moved from Champlain, NY to Rouses Point, NY; became US 9W between Waterford, NY and NY/NJ line |
| US 9W | was part of US 9 |
| US 9E | was US 109 (north end moved from South Glens Falls, NY to Waterford, NY) |
| US 10 | became US 10N between St. Cloud, MN and Moorhead, MN |
| US 10N | was part of US 10 |
| US 10S | was ? |
| US 11 | south end moved from New Orleans, LA to MS/LA line |
| US 12 | |
| US 13 | north end moved from Philadelphia, PA to Morrisville, PA; south end moved from Wilmington, North Carolina to Cape Charles, VA |
| US 14 | west end moved from Midland, SD to south of Philip, SD |
| US 15 | north end moved from Petersburg, VA to Harrisburg, PA; south end moved from Wilmington, North Carolina to Rockingham, NC |
| US 16 | east section (Grand Haven, MI to Detroit, MI) added (from US 18) |
| US 17 | north end moved from Bennettsville, SC to Fredericksburg, VA; north end moved from Yemassee, SC to Jacksonville, FL (was US 21) |
| US 17-1 | was ? |
| US 18 | west end moved from Hull, Iowa to Mule Creek Junction, WY; east end moved from Detroit, MI to Milwaukee, WI (to US 16) |
| US 19 | south end moved from Gauley Bridge, WV to Lawrenceville, GA; north end moved from Pittsburgh, PA to Erie, PA |
| US 20 | west end moved from Astoria, OR to Yellowstone National Park |
| US 21 | south end moved from Jacksonville, FL to Yemassee, SC (became US 17) |
| US 22 | west end moved from Cleveland, OH to Elizabeth, NJ |
| US 23 | |
| US 24 | west end moved from Monroe City, MO to Kansas City, MO |
| US 25 | south end moved from Augusta, GA to SC/GA line; north end moved from Toledo, OH to Port Huron, MI; became US 25W from Knoxville, TN to Corbin, KY (?) and from Richmond, KY to Newport, KY |
| US 25E | two sections, were ? |
| US 25W | two sections, were both US 25? |
| US 26 | |
| US 27 | |
| US 28 | |
| US 29 | north end moved from Gastonia, NC to Kings Mountain, NC |
| US 30 | west end moved from Salt Lake City, UT to Astoria, OR; became US 30S from Echo, UT to Granger, WY and ? from Salt Lake City to Echo |
| US 30N | was ? |
| US 30S | was US 30 from Echo, UT to Granger, WY and ? |
| US 31 | |
| US 32 | west end moved from Omaha, NE to IA/NE line |
| US 34 | west end moved from Omaha, NE to IA/NE line |
| US 36 | |
| US 38 | east end moved from Lincoln, NE to Omaha, NE |
| US 40 | west end moved from San Francisco, CA to Oakland, CA; east end moved from State Road, DE to Atlantic City, NJ; became US 40N from Colby, CO to Manhattan, KS |
| US 40N | was US 40 |
| US 40S | was US 46 from Grand Junction, CO to Limon, CO and ? |
| US 41 | north end moved from Towers, MI to Copper Harbor, MI |
| US 41W | was ? |
| US 42 | |
| US 45 | south end moved from Meridian, MS to Mobile, AL |
| US 46 | became part of US 40S |
| US 48 | east end moved from Manteca, CA to French Camp, CA |
| US 49 | |
| US 50 | west end moved from Wadsworth, NV to Sacramento, CA; became US 50N from Garden City, KS to west of Baldwin City, KS |
| US 50N | was part of US 50 |
| US 50S | was ? |
| US 51 | |
| US 52 | east end moved from Newport News, VA to Huntington, WV |
| US 53 | south end moved from Dubuque, IA to LaCrosse, WI |
| US 54 | west end moved from Dodge City, KS to Vaughn, NM; east end moved from Nevada, MO to Pittsfield, IL |
| US 55 | was ? |
| US 60 | west end moved from Los Angeles, CA to Springfield, MO; east end moved from Chicago, IL to Virginia Beach, VA (became US 66; was ?) |
| US 61 | |
| US 62 | became ? |
| US 63 | |
| US 64 | west end moved from Des Moines, NM to Capulin, NM |
| US 65 | south end moved from Vidalia, LA to LA/MS line |
| US 66 | was US 60 (west end moved from Los Angeles, CA to San Fernando, CA) |
| US 67 | |
| US 68 | was ? |
| US 69 | |
| US 70 | east end moved from Beaufort, NC to Morehead City, NC |
| US 71 | south end moved from Baton Rouge, LA to Port Allen, LA |
| US 72 | was ? |
| US 73 | south end moved from Dallas, TX to Atoka, OK; north end moved from Vinita, OK to Howe, NE |
| US 73E | was ? |
| US 73W | was ? |
| US 74 | east end moved from Whiteville, NC to Chadbourne, NC |
| US 75 | south end moved from Henryetta, OK to Galveston, TX |
| US 76 | east end moved from Wilmington, North Carolina to Florence, SC |
| US 77 | south end moved from Galveston, TX to Dallas, TX; north end moved from Omaha, NE to South Sioux City, NE |
| US 78 | became US 78N or 78S (which one?) from Heflin, AL to west of Douglasville, GA |
| US 80 | |
| US 81 | |
| US 83 | was ? |
| US 84 | was ? |
| US 85 | south end moved from Bowie, TX to Las Cruces, NM |
| US 87 | became US 87W from Muddy Gap, WY to Armington, MT |
| US 87E | was ? |
| US 87W | was part of US 87 |
| US 89 | south end moved from Flagstaff, AZ to Nogales, AZ; north end moved from Thistle, UT to Spanish Fork, UT |
| US 90 | |
| US 91 | |
| US 92 | |
| US 93 | was ? |
| US 94 | |
| US 95 | south end moved from Payette, ID to Weiser, ID |
| US 96 | |
| US 97 | |
| US 99 | |
| US 101 | south end moved from San Diego, CA to Tijuana; north end moved from Port Angeles, WA to Olympia, WA |