Clearfield County Bridge Replacements
PennDOT District 2-0, Various Locations, Clearfield County, PA |
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Stahl Sheaffer was selected as the prime consultant for a three bridge agreement package for PennDOT District 2-0, which included the SR 453 Section A02 (Bridge over Little Clearfield Creek), SR 2023 Section A02 (Bridge over unnamed tributary to Little Clearfield Creek), and SR 1004 Section A03 (Bridge over Montgomery Creek).
Stahl Sheaffer led roadway and structure design services for the replacement of the bridge carrying SR 453 over the Little Clearfield Creek in Knox and Pike Townships. The existing structure, built in 1937, had one span totaling 81 feet and was 24 feet-1 inch curb-to-curb. Roadway work included minor approach work to improve the vertical geometry and maintain the low chord clearance. The proposed structure is a single-span prestressed concrete PA Bulb-Tee beam bridge supported on integral abutments. The bridge width was increased to 28 feet-0 inches curb-to-curb, and the span length was increased to 98 feet clear span. Environmental review determined that wetlands were contained in the project area but were successfully avoided. Instream restrictions limited construction from March 1 until June 15 and October 1 to December 31. The department requested a design change due to a possible archeological concern on the near left approach. Stahl Sheaffer showed design flexibility on the project to successfully avoid the area.
The Stahl Sheaffer team provided the following services for the SR 453 project:
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SR 0453 A02 Before Construction
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A standard bridge barrier was originally proposed on the SR 453 bridge, but due to stopping sight distance limitations of the existing private driveways, a bridge barrier justification memo was written to show the benefits of changing from a standard bridge barrier to a PA Type 10M to increase the visibility of the oncoming traffic. The Type 10M barrier was taller than the alternate bridge barrier; however, the open design increased the ability to see approaching traffic through the barrier.
Utility coordination was required with five different utility companies and Pike Township for the water lines on the project. SR 0453 construction required three utility pole relocations and two gas line relocations.
Utility coordination was required with five different utility companies and Pike Township for the water lines on the project. SR 0453 construction required three utility pole relocations and two gas line relocations.