Construction on Waddle Road in State College continues this week.
Starting Tuesday, parts of I-99 will be closed due to the construction.
I-99 northbound, which goes under Waddle Road, will be closed from 7:00 p.m. through 5:00 a.m. the next morning.
On Thursday, the southbound lanes will be closed at the same location from 7:00 p.m. until 5:00 a.m.
The on and off ramps at either end of Waddle Road will be used as detours.