U.S. Route 20A
is a 53 mile (85 km) long east-west alternate route
of U.S. Route 20
located in northwest Ohio
. The western terminus of the route is at US 20 south of Pioneer
. The eastern terminus is at US 20 in Maumee
, southwest of Toledo
The route runs parallel to the Ohio Turnpike (Interstate 80 and Interstate 90) for much of its length, and interchanges with the Turnpike at exit 13 northeast of Montpelier.
US 20 and US 20A are never more than five miles apart for the entire 50-mile stretch through the Ohio farm country, with the main line of US 20 taking the more northerly route.
The route was originally designated U.S. Route 20S
. It became US 20A in 1935.