St. Peter's

Perch River Spillways

Brownville, NY

  • Capabilities

    Structural Engineering, Civil Engineering, Renovations, Repair & Restoration

  • Markets

    Municipal

The Perch River Wildlife Management Area is and operated by the New York State Department of Environmental Conservation and is about 8,000 acres in size. The area is located a few miles northwest of Watertown in Jefferson County.

The dam rehabilitation project has an approximate construction cost of $3,000,000 and includes work at three sites: Perch River Lower Pool Dam, Perch River Upper Pool Dam, and Stone Mills Dam.

The lower pool work included a concrete spillway design to support a series of six sluice gates and stop logs. A 70-foot-span vehicular access bridge was designed along with hundreds of linear feet of steel sheet piling cutoff walls, cofferdams, and excavation protection systems.

The upper pool work included a concrete spillway design to support a series of four sluice gates and stop logs. A 40-foot-span pedestrian access bridge was designed along with hundreds of linear feet of steel sheet piling cutoff walls, cofferdams, and excavation protection systems.

The Stone Mills work included a concrete head wall design to support two existing culverts.