Tribble Mill Dam No. 2 (Chandler Lake) Rehabilitation

The Gwinnett County Board of Commissioners, Department of Water Resources, is seeking qualified contractors to rehabilitate the low‑hazard Tribble Mill Dam No. 2 (Chandler Lake). The project entails full removal and replacement of concrete dam structures, water‑diversion and cofferdam installation, pipe lining, erosion control, and site restoration, with a required substantial completion within one year of contract start. • Remove existing concrete riser, impact basin, and portions of spillway pipe; install new concrete riser, impact basin, and rip‑rap outlet channel. • Perform lake drainage, construct temporary cofferdam, and operate a diversion system; install cured‑in‑place pipe lining. • Conduct extensive site restoration (tree removal, grading, grass seeding) and restore temporary access roads and erosion controls.