Oakley Dam Outlet Works Remediation Project

Evergreen Metropolitan District

Diverting bear creek and dewatering the work area in accordance with applicable permit requirements. Lockout/tagout of the upstream outlet works gate and accessing the downstream outlet works vault. Excavating the existing channel bottom downstream of the outlet works to expose the existing concrete outfall. Draining and demolishing existing steel pipe, valves, and fittings inside the outlet works vault.

City of Crystal River

Building Remediation Project.

National Operations Center

Major items of work include: Unwater the reservoir and dewater the construction area. Excavate the existing dam embankment and foundation to remove the existing outlet works structures and construct the new outlet works. Reconstruct the dam embankment Construct a toe drain system consisting of drainpipes, precast concrete manholes, flow measurement flumes, and imported sand and gravel. Construct new outlet works Excavation and grading the spillway Place imported road gravel surfacing along the crest of the dam Reclaim (prep soil and seeding) all disturbed areas, including construction staging areas and temporary road.