PennDOT will close Presto-Sygan Road for several weeks as crews begin working to fix the damaged South Fayette roadway.
Work will begin June 18 to build a retaining wall where the northbound lane slid down a hillside following heavy rains in spring 2011.
Stop signs and concrete barriers were place on Presto-Sygan Road near Bethany Cemetery, forcing motorists to stop and alternate driving on the remaining lane.
Once the retaining wall is built, which PennDOT officials said should be finished by early July, the area will be prepared for final construction work in the fall. PennDOT expects the roadway to be fully restored by October.
is urging motorists to use posted detours, which will take drivers from Millers Run Road, turning right onto Battle Ride Road, bearing right onto Oak Ridge Road and back onto Presto-Sygan.
More than 5,000 cars each day use Presto-Sygran Road, which connects South Fayette to the Presto neighborhood in Collier Township.
Twhile Pennsylvania American Water crews repaired a waterline.