The Pennsylvania Department of Transportation said South Main Street in Slippery Rock Borough will be closed from the intersection of West Liberty Street to New Castle Street for resurfacing from Sept. 20 at 7 a.m. through Sept. 24 at 7 p.m. To detour, motorists should use Franklin Road to Route 8 to South Main Street. The road will be open in the evenings.

PennDOT said the first of several single-lane traffic restrictions on I-79 south over North Boundary Road in Cranberry Township will be from Sept. 8 at 6 a.m. to Sept. 11 at 9 p.m.

The lane restrictions will be in place to allow Golden Triangle Construction Company of Imperial to work on the bridge approaches. The work will take multiple weeks to complete.