Pleasant Street Bridge
Gibson-Thomas Engineering teamed with John Gulisek Construction Company to engineer the Design-Build replacement of the multi-span bridge carrying S.R. 3017, Pleasant Street, over S.R. 0060 in Center Township, Beaver County. This project was administered by PennDOT Engineering District 11-0. The total construction cost for this bridge replacement and approach roadway reconstruction was $6,275,000, with a bridge construction cost of $2,215,000. This project had a required design and construction completion schedule of only 16 months.
The existing structure was a four-span, pre-stressed concrete I-beam bridge. The new bridge was also a four-span structure with a skew angle of 64Â°25’00” and a similar span configuration consisting of span length of: 50′-3″, 70′-6″, 70′-6″ and 46′-3″. The overall proposed bridge width was 75′-4Â½”, consisting of four-12′ traffic lanes, two-10′ shoulders, one-4′ median and two concrete parapets. Staged construction was implemented to maintain two lanes of traffic. Additional structural design elements for the project included: temporary excavation support and protection system, superstructure design, elastomeric and pot bearing design, abutment design wingwall design, and multi-column pier bent design. All substructure units were founded on rock with spread footings. The structure design and plan development for this project was completed and approved in less than 6 months.