State Route 602, just south of Cox Road in Sandusky Township, will close Aug. 31 for a culvert replacement.

The detour route for northbound motorists is SR 602 to County Road 330, east on CR 330 to State Route 598, north on SR 598 to State Route 96, west on SR 96 to SR 602, and reverse for southbound motorists. The road is expected to reopen Sept. 21.