This article is part of the
highway renumbering series.
Alabama 1928, 1957
Arkansas 1926
California 1964
Colorado 1953, 1968
Connecticut 1932, 1963
Florida 1945
Indiana 1926
Iowa 1926, 1969
Louisiana 1955
Maine 1933
Massachusetts 1933
Minnesota 1934
Missouri 1926
Montana 1932
Nebraska 1926
Nevada 1976
New Jersey 1927, 1953
New Mexico 1988
New York 1927, 1930
North Carolina 1934, 1937, 1940, 1961
Ohio 1923, 1927, 1962
Pennsylvania 1928, 1961
Puerto Rico 1953
South Carolina 1928, 1937
South Dakota 1927, 1975
Tennessee 1983
Texas 1939
Utah 1962, 1977
Virginia 1923, 1928, 1933, 1940, 1958
Washington 1964
Wisconsin 1926
Wyoming 1927

In early July 1927, the Ohio Department of Highways implemented the system of United States Numbered Highways that had been approved by the states in late 1926.[1][2] This resulted in the renumbering of many of the state highways to avoid overlaps with the new U.S. Routes and numbers used by both classes of route. In addition to the U.S. Routes, a new State Route 6 was formed, extending West Virginia Route 6 northwest from the Ohio River at Bridgeport to Norwalk. (Route 6 later became U.S. Route 250 in both states.)

A number of State Routes - 1, 10, 13, 15, 16, 31, 49, 95, 112, 124, 130, 160, 180 , and 223 - were entirely replaced by U.S. Routes or the new State Route 6. The numbers 6, 20, 21, 22, 23, 24, 25, 27, 30, 40, 42, 50, 52, and 127 conflicted with new designations, so the State Routes with those numbers were renamed. Some others - 28, 48, 63, 125, 126, 129, 142, and 263 - were replaced by extensions of other State Routes or new State Routes where not part of a U.S. Route. State Routes 102 and 249 became portions of other routes, but the numbers were reused in the immediate vicinity, 102 for the old alignment of 2 and 249 as part of a three-way route alignment swap in the immediate vicinity. The numbers freed up were reused on other routes.[3]

New Old From To
U.S. Route 20 State Route 23 Indiana West of Toledo
U.S. Route 20 State Route 63 West of Toledo Perrysburg
U.S. Route 20 State Route 102 Perrysburg Southeast of Woodville
U.S. Route 20 State Route 2 Southeast of Woodville Pennsylvania
U.S. Route 21 State Route 8 Marietta Newcomerstown
U.S. Route 21 State Route 20 Newcomerstown New Philadelphia
U.S. Route 21 State Route 13 Northwest of Strasburg (US 21 overlapped State Route 6 from New Philadelphia) Cleveland
U.S. Route 22 State Route 49 Cambridge Pennsylvania
U.S. Route 23 State Route 4 Portsmouth Marion
U.S. Route 23 State Route 22 North of Marion (US 23 overlapped SR 4 from Marion) Carey
U.S. Route 23 State Route 63 Carey Perrysburg
U.S. Route 23 State Route 6 Perrysburg Michigan
U.S. Route 24 State Route 31 Indiana Michigan
U.S. Route 25 State Route 124 Sharonville (US 25 overlapped US 42 from Cincinnati) Franklin
U.S. Route 25 State Route 6 Franklin Perrysburg (US 25 overlapped US 20 to Maumee and US 24 to Toledo)
U.S. Route 25 State Route 6 Toledo Michigan
U.S. Route 27 State Route 129 Cincinnati Ross
U.S. Route 27 State Route 223 Northeast of Ross (US 27 overlapped SR 128 from Ross) McGonigle
U.S. Route 27 State Route 126 McGonigle Indiana
U.S. Route 30 State Route 5 Indiana Delphos
U.S. Route 30 State Route 10 Delphos Jefferson (US 30 overlapped SR 5 to Wooster)
U.S. Route 30 State Route 5 Wooster Cannons Mills (US 30 overlapped SR 7 to East Liverpool)
U.S. Route 40 State Route 1 Indiana Bridgeport
U.S. Route 42 State Route 28 Cincinnati London
U.S. Route 42 State Route 160 London Delaware
U.S. Route 42 State Route 55 Delaware Medina
U.S. Route 42 State Route 3 Medina Cleveland
U.S. Route 50 State Route 7 Indiana Cincinnati
U.S. Route 50 State Route 27 Cincinnati Milford
U.S. Route 50 State Route 26 Milford Athens
U.S. Route 50 State Route 144 Athens Coolville (US 50 overlapped SR 7 to Belpre)
U.S. Route 52 State Route 130 Indiana Cincinnati
U.S. Route 52 State Route 7 Cincinnati Chesapeake
U.S. Route 127 State Route 112 Toledo Michigan
U.S. Route 322 State Route 15 Cleveland Pennsylvania
U.S. Route 422 State Route 16 Cleveland Pennsylvania
State Route 2 State Route 2 Indiana Toledo
State Route 2 State Route 23 Toledo West of Port Clinton (SR 2 overlapped SR 163 to west of Marblehead and crossed on a ferry to Sandusky)
State Route 2 State Route 12 Sandusky Cleveland
State Route 3 State Route 3 Cincinnati Medina
State Route 3 State Route 55 Medina Cleveland
State Route 4 State Route 6 Cincinnati Middletown
State Route 4 State Route 52 Middletown Southwest of Milford Center
State Route 4 State Route 55 Southwest of Milford Center Marysville
State Route 4 State Route 38 Marysville Marion
State Route 4 State Route 4 Marion Sandusky
State Route 5 State Route 5 Delphos Wooster
State Route 6 State Route 180 Fitchville (SR 6 overlapped SR 13 from Norwalk) Savannah (SR 6 overlapped SR 60 to Ashland)
State Route 6 State Route 95 Wooster (SR 6 overlapped SR 5 from Ashland) Northwest of Strasburg
State Route 6 State Route 13 Northwest of Strasburg Bridgeport
State Route 7 State Route 7 Chesapeake Conneaut
State Route 8 State Route 48 Fly Uhrichsville
State Route 8 State Route 8 Uhrichsville Cleveland
State Route 9 State Route 9 Cincinnati West of Ney (overlapped SR 22 to Ney until 1927)
State Route 9 State Route 249 West of Ney South of Bryan
State Route 9 State Route 9 South of Bryan Michigan
State Route 10 State Route 40 Washington Court House Zanesville
State Route 12 State Route 12 Findlay Sandusky
State Route 13 State Route 30 Chauncey Sandusky
State Route 15 State Route 9 South of Bryan Ney
State Route 15 State Route 22 Ney Carey
State Route 16 State Route 20 Columbus Newcomerstown
State Route 16 State Route 8 Newcomerstown Uhrichsville
State Route 26 State Route 26 Athens Griffith
State Route 28 State Route 27 Milford West of Chillicothe (SR 27 overlapped SR 26 to Chillicothe)
State Route 31 State Route 21 Pomeroy Findlay
State Route 32 State Route 32 Indiana Marysville
State Route 32 State Route 55 Marysville Delaware
State Route 38 State Route 38 Ripley Marysville
State Route 39 State Route 39 Shelby Dover
State Route 39 State Route 20 Dover (SR 39 overlapped US 21 from New Philadelphia) East Liverpool
State Route 39 State Route 5 East Liverpool Pennsylvania
State Route 48 State Route 50 Lebanon Abe
State Route 49 State Route 51 Northwest of Van Wert Michigan
State Route 51 State Route 51 Dayton Willshire
State Route 55 State Route 55 Ludlow Falls Southwest of Milford Center
State Route 63 State Route 125 West of Monroe Lebanon
State Route 73 State Route 6 Middletown Franklin
State Route 73 State Route 73 Franklin West of Portsmouth
State Route 95 State Route 42 Marion North of Cambridge
State Route 102 State Route 2 Toledo Southeast of Woodville
State Route 104 State Route 104 North of Chillicothe (SR 104 overlapped SR 11 from Chillicothe until 1927) Columbus
State Route 112 State Route 104 Northwest of Portsmouth Waverly (SR 104 overlapped US 23 to Chillicothe)
State Route 124 State Route 24 Hillsboro East of Rolandus
State Route 125 State Route 25 Cincinnati Friendship
State Route 126 State Route 129 Indiana Ross
State Route 126 State Route 26 Dunlap (SR 126 overlapped US 27 from Ross) Milford
State Route 129 State Route 127 Indiana Hamilton
State Route 130 State Route 126 Hamilton McGonigle
State Route 142 State Route 28 London West Jefferson
State Route 144 State Route 144 Coolville Little Hocking
State Route 159 State Route 27 Hopetown (SR 27 overlapped SR 4 from Chillicothe) Kinnikinnick
State Route 159 State Route 159 Kinnikinnick Amanda
State Route 160 State Route 142 Gallipolis Hamden
State Route 170 State Route 263 East Liverpool East Palestine (SR 170 overlapped SR 14 to Unity)
State Route 170 State Route 170 Unity Petersburg
State Route 180 State Route 27 Kinnikinnick Enterprise (SR 27 overlapped SR 21 to Logan)
State Route 223 State Route 102 Holland Northwest of Maumee (SR 102 overlapped US 20 to Perrysburg)
State Route 249 State Route 22 Indiana Ney
State Route 263 State Route 63 Sylvania West of Toledo
State Route 263 State Route 23 West of Toledo Toledo

Later renumberings due to U.S. Routes

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References

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  1. ^ Lima News, Many Highways Take National Number System, June 5, 1927
  2. ^ Lima News, New System of Markers to be Used in State, July 3, 1927: "work of attaching the plates bearing the highway numerals will be completed by July 9"
  3. ^ Simpson, John. "Route Renumberings of 1926". Ohio State Highways. Archived from the original on 7 March 2008. Retrieved 12 March 2017.{{cite web}}: CS1 maint: bot: original URL status unknown (link)