Upper Colorado River Endangered Fish Recovery Program
May, 2008 | Filed in: Upper Colorado
The image is of Butch Craig restoration. A 52 acre gravel pit was reconnected to the Gunnison River with seasonal flows.
Upper Colorado River Basin
The bottomland sites adjacent to the upper Colorado River and its tributaries are essential habitat for endangered Colorado River fish species (razorback sucker, humpback chub, bonytail chub and Colorado pikeminnow). Water resources development, encroachment of non-native vegetation and landuse changes have resulted in the bottomlands being isolated from interaction with the river channel at all but high flows, often exceeding the 10-year flood.
Disturbed bottomland areas of the Colorado, Gunnison and Green Rivers are evaluated for potential to improve natural interaction and function with the main river channels. Analyses performed include hydrologic analysis, hydraulic analysis, sediment transport analysis, permitting, construction plan preparation and cost estimation. Fieldwork has included hydrographic surveys, topographic surveys and geomorphic observations. Restoration alternatives have been developed for each site and presented in floodability assessment reports. RiverRestoration.org personnel also assisted in the floodplain restoration implementation phase by providing construction surveying and inspection services. Successful restoration was implemented on the Gunnison River between Delta and Grand Junction and on the Colorado in Grand Junction. Final design and permitting has been performed on two other sites along the Colorado River near Grand Junction.
- Habitat Restoration for Endangered Fish Species
- Extensive Flood Plain Reconnection and Riparian Restoration