State Route 99 (SR99) 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 (US224). Its northern terminus is at a roundabout junction with SR4 about 6 miles (9.7km) southwest of the city limits of Sandusky.
Along its way, SR99 runs through the western half of Huron County and the southwestern portion of Erie County. No segment of SR99 is included within the National Highway System, a network of highways identified as being most important for the nation's economy, mobility and defense.[4]
History
SR99 was designated in 1923. It was originally routed along its current alignment from its present southern terminus at US224, at the time known as SR17, to its junction with what is today the concurrency of US20 and SR18 in Monroeville, but in 1923 was a part of SR2.[2][3]
In 1937, the highway was extended north from Monroeville through its present northern terminus at SR4, and then continuing northwest from there along Skadden Road, and north along Bardshar Road before coming to an end at its intersection with US6 in the western end of Sandusky.[5][6] By 1966, SR99 was shortened to its present routing when the portions of the highway along Skadden Road and Bardshar Road north of SR4 were removed from the state highway system, and jurisdiction of these roadways was turned over to Erie County.[7][8]
12Map of Ohio State Highways(MrSID) (Map). Cartography by ODHPW. Ohio Department of Highways and Public Works. April 1922. Retrieved March 2, 2011.
12Map of Ohio Showing State Routes(MrSID) (Map). Cartography by ODHPW. Ohio Department of Highways and Public Works. July 1923. Retrieved March 2, 2011.
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