Construction Status: Winter 2018-19

Rehabilitation of Outer Half of Southbound Bridge Underway

Winter 2018-19 — Construction on the outer half of the southbound U.S. 202 bridge over Amtrak at the U.S. 30/Exton Bypass Interchange gets underway this winter following completion of repairs to the inner section of the bridge in late 2018.

Crews this winter will remove the original concrete pavement and began cleaning and repairing the bridge section’s structural components. Placement of the new concrete deck is scheduled for this spring along with construction of new outside parapets. Rehabilitation of the southbound bridge is expected to be completed by mid-2019.

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.

When the southbound bridge work finishes, two lanes will be restored in each direction on the rebuilt bridges. 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 this summer on the $26.4 million project that began in spring 2017.

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).

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, has 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.