Rehabilitations Design for Plumstead Bridge
Plumstead Township, PA
In 2017, W.J. Castle, P.E. & Associates, P.C. performed the in-depth inspection and evaluation of the bridge and began to develop the rehabilitation plans and specifications. Originally built in 1928, this single span is constructed of reinforced concrete t-beams on stone masonry abutments. The bridge is approximately 45’ long by 25’ wide. The initial inspection gathered dimensions, conditions, and assessments of the site to determine what repairs are required to maintain the bridge.
The proposed design includes installation of new abutments behind the existing abutments. The existing abutment remains as scour countermeasures and the added benefit is this does not change the hydraulics of the waterway. Adjacent box beams replace the original the t-beams. The existing wingwalls are cut down and new reinforced concrete moment slabs installed. The roadway was reconstructed in the area of the bridge and new guiderail including end terminal installed. The guiderail was installed in front of the parapet and extended along the approaches in accordance to PennDOT standards. Applicable permits were submitted for approval.