Beaver Creek Hydrology > Our Projects > Projects > Courtney Ryley Cooper – CO

COURTNEY-RYLEY-COOPER PARK STREAM RESTORATION PROJECT

1,800 Linear Feet | City of Idaho, CO | Construction Completed in 2012

This project included cross vane boulder features as well as a series of boulder clusters. The cross vanes create in- stream cover/holding water, remove excess shear stress from the near bank region, provide a stable width to depth ratio, increase sediment transport capacity, provide a natural sorting of gravel on the downstream side of the structure for spawning Redds, provide a diversity of depth and structure, and create grade control to prevent further down cutting along this section of stream channel while simultaneously providing safe passage for recreational boaters. The series of boulder clusters, placed at random intervals, provide in-stream cover and scour pools for additional habitat.

The Courtney-Ryley-Cooper Park Stream Restoration Project was a design-build (Beaver Creek Hydrology-Frontier Environmental Services) restoration project to mitigate the damage done to the stream corridor along Clear Creek where historic mining and recent activity had caused significant erosion and damage to the creek. An additional goal of the project was to mitigate further bank loss from erosive actions along the northern edge of the park boundary. The bank loss due to streambank erosion was jeopardizing the integrity of the park adjacent to the stream. The Restoration Plan included the design, permitting, and installation of 4 cross vane boulder features as well as a series of boulder clusters within the stream channel. The cross-vanes create in-stream cover/holding water, remove excess shear stress from the near bank region, provide a stable width to depth ratio, increase sediment transport capacity, provide a natural sorting of gravel on the downstream side of the structure for spawning redds, provide a diversity of depth and structure, and create grade control to prevent further down cutting along this section of stream channel while simultaneously providing safe passage for recreational boaters. The series of boulder clusters were placed at random intervals throughout the restored channel to provide in-stream cover and scour pools for additional habitat.

Beaver Creek Hydrology - Leaders in Natural Channel Design

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