A portion of the Northeast Extension (I-476) will be closed overnight due to construction.
I-476 will be closed and detoured northbound and southbound from 12:01 a.m. Sunday to 6 a.m. Sunday between the Lansdale (Exit 31) and Lehigh Valley (Exit 56) interchanges. Crews will work on the two overhead bridges that cross I-476 at milepost A35.2 (Morwood Road) and A56.0 (ramp-bridge at the Allentown Service Plaza).
The right lane was closed northbound and southbound on both bridges at milepost A55-A57 at 9 p.m. and milepost A34-A38 at 11 p.m. The speed limit will also be posted at 55 mph until the single-lane patterns are lifted by 9 a.m. Sunday morning.
The Allentown Service Plaza will be closed in both directions at 11 p.m. until the Interchange reopens.
Suggested detours during the closure:
Traveling northbound on I-476: Exit at the Lansdale Interchange (Exit #31) – turn left on State Route 63 (Sumneytown Pike), left on Forty Foot Rd (0.2 mile) and right on Main Street/Welsh Road (1.7 miles). Follow State Route 63 east to U.S. Route 309 north (6.4 miles) to I-78 west / U.S. Route 309 (28.3 miles). Take the U.S. Route 309-North Exit #53 (6.1 miles) to U.S. Route 22 west (1.8 miles). This will bring you to the Lehigh Valley Interchange (0.8 mile).
Traveling southbound on I-476: Exit at the Lehigh Valley Interchange (Exit #56) - follow U.S. Route 22 east to State Route 309 south (0.8 mile) to Interstate 78 east / State Route 309 south (1.8 miles). Take the State Route 309 south Exit #60 (6.4 miles). This will bring you to the Fort Washington Interchange (40.5 miles) to continue on I-276 east to Philadelphia/New Jersey or west to the Mid-County interchange to enter the Blue Route (I-476 south).
