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Dam 10 at Lock 14

Canajoharie, New York

Market Sector

Ports and Marine

Type

Locks and Dams

Services Provided

Construction Engineering and Inspection, Design, Planning, Seismic Analysis and Design

Region

Americas

T.Y. Lin International was retained by the New York State Thruway Authority Canal Corp to develop plans and contract documents for the rehabilitation of Movable Dam 10 at Lock 14 on the Mohawk River/Barge Canal. The dam consists of twin 216-foot steel trusses supporting 15 vertical lift gates.

Constructed in 1914 with modifications added in 1924, the dam was severely deteriorated, requiring remediation of the structural steel superstructure and gates, as well as the substructure units and concrete aprons. Detailed inspection of the dam consisted of ultrasonic thickness measurements to determine the extent of steel deterioration, and concrete coring to establish the depth of concrete deterioration. After the inspection, structural analysis was performed to determine which elements of the dam would require replacement or remediation. In addition to the required structural repairs, the project also involved the preparation of a detailed Cofferdam Impact Analysis to determine the flooding impacts to upstream communities. A detailed HEC-RAS model was developed of the area.

Project Highlights:

  • Constructed in 1914 with modifications added in 1924, dam was severely deteriorated, requiring remediation of structural steel superstructure, gate operating machinery, as well as substructure units and concrete aprons; barge mounted drilling rigs were used to perform geotechnical investigations.

An investigation of hazardous waste and contaminated materials (HWCM), asbestos, lead, and the impacts to threatened and endangered species was completed, as well. Barge mounted drilling rigs were used to perform geotechnical investigations.