Spread creek fish passage improvement project
QCI worked in conjunction with Trout Unlimited, National Park Service, and U.S. Forest Service personnel to provide for fish passage at an existing concrete diversion structure on Spread Creek. The existing diversion structure was approximately nine feet high and 120 feet long with a four to six foot head differential between the upstream and downstream sides. The existing structure was removed and replaced with a series of rock weirs to maintain a maximum irrigation delivery rate of 60 cubic feet per second. The project included a new headgate structure, measurement devices, 1,100 linear feet of pipeline ranging from 24-inch to 48-inch diameter, and approximately 320 linear feet of biologically based bank stabilization. A segment of the pipeline operates as an inverted siphon to facilitate an underground crossing of Spread Creek. The project was featured in the winter 2011 issue of Trout Magazine.
QCI developed bidding and contract documents for the project, assisted with contractor selection, and provided construction staking and oversight as necessary through project implementation. Project monitoring has confirmed successful upstream post project fish passage.
QCI developed bidding and contract documents for the project, assisted with contractor selection, and provided construction staking and oversight as necessary through project implementation. Project monitoring has confirmed successful upstream post project fish passage.