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JM Davidson Engineering, D.P.C. (JMD) was contracted by the NYS Office of Parks, Recreation and Historic Preservation (NYSOPRHP) to develop superstructure replacement plans to address this deteriorated bridge in Allegany State Park. The bridge is a two-span steel girder structure and provides the only access to one of the maintenance shops in the park. The bridge was issued a Red Structural Flag that was for deteriorated steel girders during the 2019 NYSDOT Biennial Bridge Inspection and subsequently closed. Addressing the red flag and reopening the bridge was a top priority for the park. A Level One load rating was performed on the bridge and it was found the girders, even with significant deterioration, still had capacity to carry a legal live load and the bridge was reopened. JMD also worked with NYSOPRHP to investigate superstructure replacement options to address the long-term functionality of the bridge. A new prefabricated steel girder bridge was determined to be the most cost effective option for replacing the superstructure. JMD prepared
bid plans for the new superstructure and modifications to the existing substructures to accommodate the new bridge. During construction JMD assisted NYSORHP with shop drawings reviews.
The work performed included:
Client:
NYS Office of Parks, Recreation & Historic Preservation
Construction Cost:
$100,000
Project Duration:
2020 – 2021
Key Services:
Bridge Load Rating, Bridge Design
