Construction Status: Spring 2018

NB Bridge Construction Continues, Work on Ramp from US 30 to US 202 N Gets Underway

Spring 2018 — Construction continues this spring on the outer half of the northbound U.S. 202 bridge over Amtrak at the U.S. 30/Exton Bypass Interchange as work starts to replace the deteriorated concrete pavement on the ramp from eastbound Bypass to U.S. 202 north in East and West Whiteland townships, Chester County.

With a lane of northbound traffic now riding on new pavement on the refurbished inside half of the northbound bridge, crews have removed the old concrete deck from the opposite side of the structure and will refurbish the steel superstructure before re-decking the bridge later this spring.

Northbound and southbound U.S. 202 remains two lanes wide through the work area. The inside northbound lane splits off into an “express lane" pattern utilizing the southbound bridge through the work zone. One lane remains on the northbound side, providing access to the U.S. 30 off-ramp and rejoining the inside “express lane” on the north side of the work zone.

Since starting work in spring 2017 on the $26.4 million project, workers have repaired and re-decked the inside half of the two-lane structure and replaced the deteriorated concrete from the outside lane of the two-lane ramp to the Bypass and Business 30.

Work is now underway to replace the deteriorated concrete pavement from the two-lane ramp from U.S. 30/Exton Bypass to U.S. 202 north. The ramp is reduced to one-lane until the concrete pavement on both lanes of the ramp is replaced this fall 

PennDOT is replacing the pavement and sound wall foundations after discovering that the original concrete, placed during construction of the Exton Bypass during the mid-1990s, was deteriorating due to a chemical reaction between the concrete’s sand and cement known by engineers as ASR (alkali-silica reaction). 

The southbound off-ramp was re-opened to two lanes in mid-December. PennDOT plans to replace the deteriorated concrete pavement on the inside (left) ramp lane during overnight and weekend operations beginning this spring to minimize travel restrictions on the busy expressway. The ramp concrete will be replaced in sections under temporary construction patterns so that both lanes of the ramp are open for peak morning and evening traffic.

Construction also will take place later this year on Dunwoody Drive below the bridge to replace the retaining wall that supports the bridge's southern abutments.

The bridge and ramp repairs will complete the final phase of the U.S. 202 Section 300 improvement project by rehabilitating two U.S. 202 bridges over Amtrak rail lines and the eastbound U.S. 30 Exton Bypass ramp in East Whiteland and West Whiteland townships, Chester County.

Under the 100 percent federally-funded project, PennDOT is rehabilitating and re-decking the deteriorated northbound and southbound U.S. 202 bridges, constructing a retaining wall on Dunwoody Drive to support the bridges’ southern abutments, installing and upgrading electronic message signs along the U.S. 202 corridor, and replacing the deteriorated concrete pavement on the U.S. 202 ramps to and from the U.S. 30/ Exton Bypass.

The project is scheduled for completion in late 2019. Allan A. Myers Construction, of Worcester, PA, is the general contractor.