Instream Flow Studies, Reports, and Recommendations


LaGory, K.E., J.W. Hayse, and D. Tomasko. 2003. Recommended Priorities for Geomorphology Research in Endangered Fish Habitats of the Upper Colorado River Basin. Environmental Assessment Division, Argonne National Laboratory.


Mainstem Upper Colorado River

Williams, C.A., Schaffrath, K.R., Elliott, J.G., and Richards, R.J., 2013. Application of sediment characteristics and transport conditions to resource management in selected main-stem reaches of the Upper Colorado River, Colorado and Utah, 1965–2007. U.S. Geological Survey Scientific Investigations Report 2012–5195, 82 p.

Sundeen, K., C. Bradford, M. Pastore, D. Ensign. 2008. DRAFT 10825 Water Supply Alternatives Summary, Phase II Assessment A Project of the East Slope and West Slope Water Users in Support of the Upper Colorado River Endanterer Fish Recovery Program.

2008. Colorado River: 15-Mile Reach Programmatic Biological Opinion Depletion Accounting Pursuant to Appendix B Report Period 2001-2005

Channel Monitoring Evaluate Geomorphic Change on the Main Stem Colorado November 2007 Final Report

2006. Upper Colorado River Endangered Fish Recovery Program Coordinated Reservoir Implementation Plan

Pitlick, J. 2004. Channel Monitoring to Evaluate Geomorphic Changes on the Main Stem of the Colorado River. Final Report, Recovery Program Project Number 85A.

Anderson, R. and G. Stewart. 2003.Riverine Fish Flow Investigations
Federal Aid Project F-289-R6

2003. Phase 2 Coordinated Facilities Water Availability Study For The Endangered Fishes of The Upper Colorado River Final Report, September 2003.

Kaeding, L. R. and D. B. Osmundson. 1989. Biologically Defensible Flow Recommendations for the Maintenance and Enhancement of Colorado Squawfish Habitat in the '15-Mile' Reach of the Upper Colorado River During July, August and September. Grand Junction, Colorado, Fish and Wildlife Service, Colorado River Fishery Project: 169.

Osmundson, D. B. 2001. Flow regimes for restoration and maintenance of sufficient habitat to recover endangered razorback sucker and Colorado pikeminnow in the upper Colorado River: interim recommendations for the Palisade-to-Rifle reach. Final Report. U. S. Fish and Wildlife Service, Grand Junction, Colorado.

Osmundson, D. B., P. Nelson, et al. 1995. Relationships Between Flow and Rare fish Habitat in the '15-Mile Reach' of the Upper Colorado River. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation: 81.


Duchesne River

Central Utah Conservancy District. 2013. 2004-2011 Water Management Report, August 2013.

2006 Duchesne River Sediment Monitoring

2005 Update of the Reasonable and Prudent Alternative in the July 1998 Biological Opinion for the Duchesne River Basin

Modde, T. & C. Keleher. 2003. Flow recommendations for the Duchesne River with a Synopsis of Information Regarding Endangered Fish.

Gaeuman, D., P.R. Wilcock and J. C. Schmidt. 2003. High Flow Requirements for Channel and Habitat Maintenance on the Lower Duschesne River between Randlett and Ouray, Utah Final Report UCRBRIP Project No. 84-4


Green River

Lagory, K.E., L.J. Walston, A. Orr, and C.C. Weber. 2017. 2016 Reassessment of Floodplain Wetland Connections in the Middle Green River, Utah. Argonne National Laborary Report, 29 p.

Larval Trigger Study Plan Ad Hoc Committee. 2012. Study Plan to Examine the Effects of Using Larval Razorback Sucker Occurrence in the Green River as a Trigger for Flaming Gorge Dam Peak Releases. March, 2012.

Green River Study Plan ad hoc Committee. 2007. Study Plan for the Implementation and Evaluation of Flow and Temperature Recommendations for Endangered Fishes in the Green River Downstream of Flaming Gorge Dam. Coordinated by the Upper Colorado River Endangered Fish Recovery Program.

Bestgen, K.R., K.A. Zelasko, R.I. Compton, and T. Chart. 2006. Response of the Green River Fish Community to Changes in Flow and Temperature Regimes from Flaming Gorge Dam since 1996 based on sampling conducted from 2002 to 2004 Final Report 115, Larval Fish Laboratory Contribution 144.

U.S. Fish and Wildlife Service. 2005. Final Biological Opinion on the Operation of Flaming Gorge Dam. September 6, 2005. Salt Lake City, Utah.

Kitcheyan, D.C., and G.B. Haines. 2004. Evaluation of the Effects of Stage Fluctuations on Overwinter Survival & Movement of Young Colorado Pikeminnow in the Green River River, Utah, 1999-2002 Upper Colorado River Basin Recovery Implementation Program, Project No. 104.

Muth, R. T., et al. 2000. Flow and Temperature Recommendations for Endangered Fishes in the Green River Downstream of Flaming Forge Dam. Project FG-53, Upper Colorado River Endangered Fish Recovery Program.


Gunnison River

2012. Aspinall Unit Operations Final Environmental Impact Statement

Aspinall Unit Study Plan ad hoc Committee. 2011. Study Plan To Evaluate Effects of Aspinall Unit Operations to Benefit Habitat and Recovery of Endangered Fishes in the Gunnison and Colorado Rivers. Coordinated by the Upper Colorado River Endangered Fish Recovery Program.

Boyer, J.M. and A. Cutler. 2004. Gunnison River/Aspinall Temperature Study - Phase II Prepared for the Upper Colorado River Recovery Program, Project #107.

McAda C. 2003. Flow Reccomendations to Benefit Endangered Fish in the Colorado and Gunnison Rivers.

2001. Gunnison River/Aspinall Unit Temperature Study - Phase I. Prepared for the Upper Colorado River Recovery Program USBR Contract #01-FC-40-5340

Burdick, B. D. 1997. Minimum Flow Recommendation For Passage Of Colorado Squawfish And Razorback Sucker In The 2.3-Mile Reach Of The Lower Gunnison River: Redlands Diversion Dam To The Colorado River Confluence. Colorado River Recovery Program: 39+.


Price River

Chart, T. and J. Mohrman. 2012. The Upper Colorado River Endangered Fish Recovery Program's Position on the ROle of the Price River in Recovery of Endangered Fish and the Need for Minimum Flow Management. Prepared For: U.S. Fish and Wildlife Service, Ecological Service, Utah Field Office. May 2012


White River

Haines, G.B., D. Irving, and T. Modde. 2004. White River Base Flow Study for Endangered Fishes, Colorado and Utah, 1995-1996. Final Report, Project 65, Prepared for UCRBRIP Project No 5D.

Appendices for the White River Base Flow Study

Lentsch, L.D., B.G. Hoskins, L.M. Lubomudrov. 1998. The White River and Endangered Fish Recovery: A Hydrological, Physical and Biological Synopsis. Final Report September 1998 Updated and Edited September 2000 Prepared for: Recovery Implementation Program for Endangered Fish Species of the Upper Colorado River Basin Project No. 21. Publication Number 00-37


Yampa River

Ruddy, B.C. 2010. Streamflow gain-loss characteristics of Elkhead Creek downstream from Elkhead Reservoir near Craig, Colorado, 2009. U.S. Geological Survey Scientific Investigations Report 2010–5198, 14 p.

Memorandum from Robert Muth, Program Director of the Upper Colorado River Recovery Program to Erin Light, Division Engineer, Water Division 6, Steamboat Springs, Co regarding base flow augmentation from Elkhead Reservoir to the Yampa River at Maybell, April 3, 2008.

Roehm, G.W. 2004. A Management Plan for Endangered Fishes in the Yampa River Basin and Environmental Assessment. U.S. Fish and Wildlife Service, Mountain-Prairie Region (6). Denver.

Anderson, R. and G. Stewart. 2003.Riverine Fish Flow Investigations
Federal Aid Project F-289-R6

Modde, T., W. J. Miller, and R. Anderson. 1999. Determination of habitat availability, habitat use, and flow needs of endangered fishes in the Yampa River between August and October. Final Report to Upper Colorado River Endangered Fish Recovery Program. Denver.

Modde, T. and G. Smith. 1995. Flow Recommendations for Endangered Fishes in the Yampa River. Denver, CO, U.S. Fish and Wildlife Service: 45.

U.S. Fish and Wildlife Service. 1990. Streamflow Needs of Rare and Endangered Fishes: Yampa River Interim Flow Recommendations - Final Report, U.S. Fish and Wildlife Service: 13+.

Tyus, H. M. and C. A. Karp. 1988. Stream Flow Needs of Rare and Endangered Fishes, Yampa River, Colorado. Vernal, Utah, Fish and Wildlife Service Colorado River Fishes Project: 54.