A portion of Petersburg Road in South Middleton Township will close Monday.
Signs alerting drivers to the closure will be posted at the intersection of Park Drive and Petersburg Road and at the intersection of Route 174 and Petersburg Road.
Township manager Cory Adams said crews will replace a culvert about 100 yards south of Kunkle Bridge, which carries traffic over Yellow Breeches Creek.
The closure is expected to last about three weeks, but it could be longer, depending on the weather, or shorter if crews are able to finish the job quickly, Adams said.
Kunkle Bridge also is to be replaced this year as part of the county’s Bridge Capital Improvement Plan, which includes more than $14 million of bridge replacement and repair projects.
The primary funding source for the project is the $5 per vehicle registration fee that the county approved in early 2015.
The 114-year-old Kunkle Bridge makes a north-south connection in the township, but has a 14-ton limit for single vehicles and 20-ton limit for combination vehicles.