Ohio State Route 350
State highway in southwestern Ohio, US
State Route 350 (SR 350) is a 27.41-mile (44.11 km) east–west state highway in the southwest portion of the U.S. state of Ohio. The highway has its western terminus at SR 123 approximately 2.50 miles (4.02 km) southeast of Lebanon, and just southeast of the interchange Interstate 71 (I-71) has with SR 123 at its exit 32. The eastern terminus of State Route 350 is in New Vienna, following its nearly 2-mile (3.2 km) long concurrency with SR 73, where the two routes meet SR 28 at a signalized intersection.
Route description
SR 350 passes through portions of Warren and Clinton Counties along its way. No portion of this state highway is included within the National Highway System (NHS). The NHS is a network of highways determined to be most important for the nation's economy, mobility and defense. Between US-22 & SR 123, SR 350 is closed to trucks due to several sharp bends.
History
The SR 350 designation was applied in 1935. The highway originally ran entirely within Warren County, along its current alignment from its western terminus at SR 123 southeast of Lebanon to its junction with the concurrency of U.S. Route 22 (US 22) and SR 3 west of Clarksville.
In 1938, SR 350 was extended east along a previously un-numbered roadway into Clinton County, where its new endpoint was at its junction with SR 73 northwest of New Vienna.
The public source identifies “Ohio State Route 350” as state highway in southwestern Ohio, US. This brief keeps that definition visible, then builds a research path around Ohio, State and Route.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Feb 16, 2026. The linked authority identifier is Q2492393. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1935 and 1938.
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This entry incorporates text from “Ohio State Route 350” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.