CROW DAM SPILLWAY
Crow Dam Spillway Modification Area 3 2021
LOCATION: Ronan, MT
OWNER: Confederated Salish Kootenai Tribes
Big Sky Civil Constructors and Montana Civil Constructors Joint Venture was contracted in March of 2020 to rehabilitate the spillway on the Lower Crow Reservoir. Project includes demolition of the existing concrete spillway, excavation, under drains, zoned filter material, cutoff wall, mass concrete slabs, construction of a piano key weir, new spillway channel, zoned backfill, riprap, reclamation of site and installation of a precast bridge.