People driving between Frogtown and Yocumtown in Fairview Township can expect construction delays starting Monday and lasting until spring, PennDOT has announced.

Excavation and temporary widening work will start Monday on Wyndamere Road (Route 177) and Valley Road (Route 262) at the intersection of Old York Road, according to the state Department of Transportation.

It's the start of a $1.3 million project to realign the intersection and install traffic signals.

On weekdays after 9 a.m., drivers can expect shifting traffic patterns and single-lane restrictions, with flaggers alternating traffic through the work zone as crews install drainage pipe and temporarily widen and realign the road, PennDOT said.

Work will be suspended over Labor Day and Thanksgiving weekends, as well as from Dec. 23 to Jan. 3, 2011, according to Penn DOT. The entire project is expected to be completed in the spring.

About 11,800 vehicles travel Wyndamere Road daily, and about 9,000 vehicles travel Valley Road each day, PennDOT said.

The work contract was awarded to Leon E. Wintermyer Inc. of Yocumtown Road in Newberry Township, and includes project design, excavation, shoulder widening, drainage pipe installation, roadway realignment, curb installation, road resurfacing, traffic signal installation and new traffic lines.