Construction Status: Spring 2019

Deck Construction Underway on Outer Half of Southbound Bridge

Spring 2019 — Deck construction is underway this spring on the outer half of the southbound U.S. 202 bridge over Amtrak at the U.S. 30/Exton Bypass Interchange in Chester County.

Crews completed cleaning and re-painting the steel I-beam superstructure in early spring and began pouring the concrete deck in late April. The entire deck should be in place by early June. Construction of new outside parapets will follow, substantially completing the rehabilitation of the southbound bridge by mid-July.

When the southbound bridge work finishes, the "express lane" will be removed and two lanes will be restored in each direction on the rebuilt northbound and southbound bridges. The final stage of the project will regrade the median, install guiderail, signs, etc. and mill and repave the approach to both the northbound and southbound bridges in work that is expected to be completed at night.  

Construction on Dunwoody Drive below the bridges to replace the retaining wall that supports the embankments under the bridge will finish in late summer. 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, has been completed.  Additional repairs on this overpass’s substructure will continue through the summer.

All work on this project is expected to be completed in late October.

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.

Crews completed replacement of the deteriorated concrete pavement on the two-lane ramp from U.S. 30/Exton Bypass to U.S. 202 north in early December 2018. 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 replaced the ramps' 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).

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. Allan A. Myers Construction, of Worcester, PA, is the general contractor on the 100 percent federally-funded project.