Two PA Turnpike Detours for Bridge Replacement Projects

Allegheny National Forest Visitors BureauBRADFORD, PA – September 14, 2017 – This month, the Pennsylvania Turnpike will implement major detours in both directions to accommodate bridge-replacement projects in Beaver County in western PA and in Lehigh County in eastern PA. The closures will involve sizable travel impacts.

Each 55-hour closure will result in a significant detour that will add more than an hour to travel time.

The closures are scheduled as follows:

  • From 9 p.m. Friday, Sept. 22, through 4 a.m. Monday, Sept. 25, on the east-west mainline (I-76, milepost 20.47) in Beaver County. The detour exits are the New Castle Interchange (#10) for eastbound travelers and the Cranberry Interchange (#28) for westbound travelers. The authorized detour route will direct motorists to Interstate 376, Interstate 80 and Interstate 79.
  • From 9 p.m. Friday, Sept. 29, through 4 a.m. Monday, October 2, on the Northeastern Extension (I-476, milepost 57.66) in Lehigh County. The detour exits are Lehigh Valley Interchange (#56) for northbound travelers and the Pocono Interchange (#95) for southbound travelers. The authorized detour route will direct motorists to Route 22, Route 33 and Interstate 80.

The authorized detour routes will be clearly marked for both through traffic and local traffic. Motorists should pay close attention, looking for the orange and black directional signs while driving.

Drivers are encouraged to avoid these sections of the highway during the construction weekends or adjust travel plans to account for the detours.

NOTE: The Pennsylvania Turnpike is using an innovative engineering procedure, Accelerated Bridge Construction (ABC), that allows workers to replace bridges in 55 hours instead of requiring a year or more of construction that would impact traffic. The proven technique also improves safety for workers and motorists. For more information on the ABC projects and the maps of authorized detours, please visit