CLEARFIELD — The Pennsylvania Department of Transportation announced Wednesday that work to replace a bridge on Route 66 (James City Hill Road) in Wetmore Township is scheduled to start Monday.

Replacing the bridge will improve its condition from “poor” to “good.” A detour will be in place during the project.

Starting Monday, motorists will be directed to an official 40-mile detour using Route 948 (Montmorenci Road), Route 219 (Buffalo Pittsburgh Highway), and Route 321. Motorists familiar with the area may choose alternate routes, but they are advised a Route 321 bridge spanning Five Mile Run about three miles north of Kane will also be closed starting Monday.

PennDOT anticipates reopening the road to traffic by Aug. 9 and will lift the closure earlier if work progress allows. All work is weather dependent.

The existing 13-foot bridge was built in 1924. It spans Wind Run about two miles south of Kane and carries an average of almost 1,700 vehicles daily. The existing bridge will be replaced with a prestressed concrete box culvert.

This $365,000 project is a joint effort between PennDOT McKean County Maintenance and The L.C. Whitford Company, Inc. of Wellsville, N.Y. PennDOT will perform the excavation and backfill. The contractor will install the box culvert and perform paving.