Ohio State Route 99

State Route 99 (SR 99) is a north–south state highway in the north-central portion of the U.S. state of Ohio. The highway's southern terminus is in the southern end of Willard at a T-intersection with U.S. Route 224 (US 224). Its northern terminus is at its junction with SR 4 about 6 miles (9.7 km) southwest of the city limits of Sandusky.
Route description
Along its way, SR 99 runs through the western half of Huron County and the southwestern portion of Erie County. No segment of SR 99 is included within the National Highway System, a network of highways identified as being most important for the nation's economy, mobility and defense.
History
SR 99 was designated in 1923. It was originally routed along its current alignment from its present southern terminus at US 224, at the time known as SR 17, to its junction with what is today the concurrency of US 20 and SR 18 in Monroeville, but in 1923 was a part of SR 2....