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 64°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′-4½”, 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.


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Gibson-Thomas Engineering Co., Inc. is a multi-discipline consulting engineering firm established in 1916 in Latrobe, Pennsylvania. Our past experience, key staff and commitment to total client satisfaction are the major factors that our clients consider when contracting with Gibson-Thomas Engineering.

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