Outlet Works Design

Marston Reservoir Outlet Project

Denver Water Department
Denver, Colorado
Marston Reservoir Outlet Project

The Marston Dam is a homogeneous embankment dam with a puddle clay core constructed to supply raw water to the Marston Water Treatment Plant. The outlet works consist of a 90-inch pipe and a 66-inch outlet pipe. There were several primary objectives that needed to be considered, JFSA examined several alternatives and after several rounds of discussion with clients and stakeholders selected a preferred alternative and completed a. The preferred alternative consisted of a, an, two approach channels, and a bridge from the dam crest to the outlet tower.

Project Highlights:
  • 30 % design of the selected alternative along with a cost estimate
  • 40-foot diameter outlet tower upstream of the dam
  • Intake structure and three pump systems
  • 1000 feet tunnel
  • 144-inch dia pipeline to connect tunnel to existing Water Treatment Plant
Marston Reservoir Outlet Project Marston Reservoir Outlet Project

Marston Reservoir Outlet Project

Denver Water Department
Denver, Colorado
Marston Reservoir Outlet Project

The Marston Dam is a homogeneous embankment dam with a puddle clay core constructed to supply raw water to the Marston Water Treatment Plant. The outlet works consist of a 90-inch pipe and a 66-inch outlet pipe. There were several primary objectives that needed to be considered, JFSA examined several alternatives and after several rounds of discussion with clients and stakeholders selected a preferred alternative and completed a. The preferred alternative consisted of a, an, two approach channels, and a bridge from the dam crest to the outlet tower.

Project Highlights:
  • 30 % design of the selected alternative along with a cost estimate
  • 40-foot diameter outlet tower upstream of the dam
  • Intake structure and three pump systems
  • 1000 feet tunnel
  • 144-inch dia pipeline to connect tunnel to existing Water Treatment Plant