A Moltz-Mueller joint venture, the project consisted of removal of existing ogee spillway and forming and placing new ogee spillway, raising the spillway crest four feet. Also included modifications to the outlet works trash rack and guides.
The Stagecoach dam is a high-elevation dam and work occurred while reservoir was filled. No debris was allowed to fall into reservoir or downstream.
Start Date: September 2010
Completion Date: November 2010
Percent Performed by MCS: 95%
Owner: Upper Yampa Water Conservancy District
Engineer: URS Engineers