U.S. Route 24 in Ohio

U.S. Route 24
US 24 highlighted in red across northwestern Ohio
Route information
Maintained by ODOT
Length:	83.33 mi (134.11 km)
Major junctions
West end:	US 24 near Antwerp
	US 127 near Cecil US 6 near Napoleon I-475 / US 23 in Maumee US 20 in Maumee I-75 in Toledo
East end:	US 24 in Toledo
Location
Counties:	Paulding, Defiance, Henry, Lucas
Highway system
United States Numbered Highway System List Special Divided Replaced Ohio Highways Interstate U.S. State Scenic ← SR 23 SR 24 →

U.S. Route 24 (US 24) is a United States Numbered Highway that runs from Minturn, Colorado, to Independence Township, Michigan. In Ohio, it is a limited-access route for much of its length, from the Ohio-Indiana border to Maumee. From there northeasterly to the Michigan-Ohio border in Toledo, it is a surface highway.

From the Indiana state line easterly to Interstate 475 (I-475) in the city of Maumee, US 24 is a limited-access divided highway which mostly has interchanges, but features intersections with select county roads. The route continues northeasterly through downtown Maumee and the western side of Toledo, continuing to the Michigan–Ohio border. At this point, the route continues northerly into Michigan as a north-south highway.

Upgrades to the route around Napoleon began in 2008. This included the construction of a new route from east of Napoleon to north of Waterville, bypassing the original routing of the highway. This rerouting was done to " alleviate safety concerns caused by the mixture of truck traffic and residential travel" along US 24's former routing. New alignments west of Defiance through to Interstate 469 in Fort Wayne, Indiana were also built in the late 2000s. The conversion to an expresway, first proposed in 1969, was made due to the high number of road accidents along the old alignment, which comprised only two lanes and was frequently used by tractor trailers.