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Replacement of Wilcox Hill Road Bridge over Reservoir Brook
Town of Portland, Connecticut

THE CHALLENGE: The existing Wilcox Hill Road Bridge had a 21 foot clear simple span with a 17 foot clear road width. Construction consisted of rolled steel girders with corrugated metal deck and bituminous concrete overlay on masonry brownstone abutments and wingwalls. The Connecticut Department of Transportation had determined that the bridge was structurally deficient and therefore eligible for funding through the State and Federal Local Bridge Programs.

Due to the deteriorated condition of both the superstructure and the substructure, the existing bridge had to be replaced. This project was one of the first eight bridge in the State to be funded through the Federal Local Bridge Program.

THE SOLUTION: The new bridge consisted of an AASHTO HS20 designed, 30 foot span by 13.7 foot rise, precast reinforced concrete arch with concrete gravity wingwalls. The arch foundation was founded on bedrock. The clear road width was increased to 30 feet. Metal beam guide rails were proposed over the arch in lieu of parapets. The arch elements were covered with a membrane waterproofing system.

  

Wilcox Hill Road was closed for the construction of the new bridge, which was completed in 1996. Final construction cost was approximately $500,000.



Complete bridge engineering design services were provided by Nathan L. Jacobson & Associates, Inc. Project management was directed by an associate of the firm, specializing in bridge design. Services included everything from initial meetings with officials and adjacent property owners to permit procurement, shop drawing review and periodic site inspection.


86 Main Street
P.O. Box 337
Chester, Connecticut  06412-0337
860-526-9591 (phone)
860-526-5416 (fax)
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