Construction Status: Fall 2018

Inner Half of Southbound Bridge Heads for Completion Late this Year

Fall 2018 — Reconstruction of the inner half of the southbound U.S. 202 bridge over Amtrak at the U.S. 30/Exton Bypass Interchange heads for completion in late fall following placement of the new concrete deck and construction of parapets.

Crews removed the original concrete pavement and began cleaning and repairing the bridge section’s structural components in mid-summer. Work on the southbound bridge follows rehabilitation of the northbound span and a traffic shift that splits southbound traffic approaching the bridge. The new pattern has the southbound inside lane shifting into a barrier protected “express lane" on the refurbished northbound bridge while the outside southbound lane remains on the southbound side as the southbound bridge is rehabilitated a half-at-a-time.

Once work finishes on the inner half of the bridge, a single lane of southbound traffic will be shifted onto the new pavement and work will get underway on the outer half of the span. Repairs to the outside section of the bridge are expected to be completed in mid-2019.

Traffic lanes will then be restored to two lanes in each direction. The final stage of the project will reconstruct the median and mill and repave the approach to both the northbound and southbound bridges in work that is expected to be completed at night, finishing work on the $26.4 million project that began in spring 2017.

As rehabilitation continues this fall on the southbound overpass, crews expect to finish replacing the deteriorated concrete pavement on the two-lane ramp from U.S. 30/Exton Bypass to U.S. 202 north by year’s end. The ramp is reduced to one-lane until the concrete pavement on both lanes of the ramp is replaced this fall.

Replacement of the concrete pavement on the two-lane ramp from southbound U.S. 202 to U.S. 30 finished in late spring 2018.

PennDOT is replacing the ramp concrete 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). 

Construction on Dunwoody Drive below the bridges to replace the retaining wall that supports the bridges’ southern abutments will be completed in spring 2019. Rehabilitation of the deck, expansion joints, parapets and approaches on the Morstein Road bridge over U.S. 202, located south of the U.S. 30 interchange,  have been completed.  Additional repairs on this overpass’s piers and abutments will wrap up next spring as well.

The bridge and ramp repairs will complete the final phase of the U.S. 202 Section 300 improvement project in East Whiteland and West Whiteland townships, Chester County. The bridge and ramp repairs are scheduled for completion in late 2019. Allan A. Myers Construction, of Worcester, PA, is the general contractor on the 100 percent federally-funded project.