All lanes have been reopened southbound on I-476 at the Lansdale Interchange after crews made emergency repairs to the southbound roadway between milepost 29.5 and 29.1.
The Pennsylvania Turnpike Commission put a single lane traffic pattern in effect southbound between Lansdale (Exit No. 31) and Mid-County (exit No. 20) Tuesday morning.
Construction crews shut down the southbound lanes from milepost 29.5 to 29.1 early Tuesday for emergency repairs to the mainline bridge over Green Lane. The speed limit posted through the construction zone is 55 mph, with intermittent stoppages and traffic expected, said the Turnpike Commission.
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A 2-mile backup approaching Lansdale already slowed things down Tuesday. Route 309 was used as an alternate route.
Shortly before 6:30 p.m., officials announced the interchange to southbound I-476 was reopened. They then announced shortly before 9 p.m. it was closed again as crews restored a temporary retaining wall. Concrete was placed to patch the section of the roadway where the hole had formed. Around 11 p.m. crews announced all emergency repairs were completed and all lanes are now open again southbound.