Ohio State Route 66
Route of SR 66 highlighted in red
|Maintained by ODOT|
|Length:||117.81 mi (189.60 km)|
|Existed:||1924 – present|
|South end:||US 36 in Piqua|
| US 33 in St. Marys
US 30 near Delphos
I-80 / I-90 / Ohio Tpk. near Archbold
|North end:||US 20 in Fayette|
|Counties:||Miami, Shelby, Auglaize, Allen, Van Wert, Putnam, Paulding, Defiance, Williams, Henry, Fulton|
State Route 66 (SR 66) is a north–south state highway in the northwestern portion of the U.S. state of Ohio. Its southern terminus is at US 36 in Piqua, and its northern terminus is at US 20 in Fayette. South of Defiance it generally follows the route of the former Miami and Erie Canal.
||This section is in a list format that may be better presented using prose. (October 2010)|
- 1924 – Original route established. Originally routed from Piqua to the Michigan state line 4 miles (6.4 km) north of Fayette.
- 1931 – Truncated at Fayette; U.S. Route 127 replaced the route’s alignment from Fayette to the Michigan state line.
- Ohio Department of Transportation. "Technical Services Straight Line Diagrams".
- Explanation of the Ohio State Highway System (The Unofficial Ohio State Highways Web Site) by John Simpson[unreliable source][dead link]
- Route 66 (The Unofficial Ohio State Highways Web Site) by John Simpson[unreliable source][dead link]
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