Red Fleet Dam


Red Fleet Dam and Reservoir are constructed on Big Brush Creek about 3.5 miles downstream from the crossing of State Highway 44 and about 10 miles northeast of Vernal, Utah. The dam is zoned earthfill with a structural height of 144 feet above the bed of Big Brush Creek. The crest length is 1,670 feet long and 30 feet wide. Red Fleet Reservoir has a total capacity of 26,000 acre-feet, of which 24,000 acre-feet is active storage. The reservoir has a surface area of 521 acres at the normal water surface elevation of 5,608.2 feet.


Red Fleet Dam and Reservoir are located on the south flank of the Uinta Mountains in the unglaciated valley of Big Brush Creek, a tributary of the Green River.  The stream begins near the crest of the range and flows in a southwest direction to the Green River.  The oldest rocks exposed in the drainage area are Precambrian age and occur in the headwaters of the basin.  Successively younger rocks crop out down the river valley.  These rocks form a thick layer of roughly parallel sedimentary beds as young as mid-Cretaceous in age.  Initially, they formed a horizontal layer overlying a relatively flat erosion surface on Precambrian age.  Following the uplift in late Cretaceous time, they formed an anticline over a core of Precambrian rock.  Erosion removed the cover over the crest of the fold and the Paleozoic and Mesozoic rocks now occur on the flanks of the range as a succession of outward dipping beds.  Rock formations of Mesozoic age underlie the reservoir, while the damsite is underlain only by rocks of Cretaceous age.  Further downstream, Tertiary age sediments, deposited after the older beds were folded, blanket the Unita Basin floor and cover many of the interstream areas on the mountain slope.  These rocks occur in relatively horizontal layers and in many places lap up on the eroded edges of the older sediments.

RegionFacilities in Upper Colorado | Upper Colorado Home Page
ProjectCUP-Jensen Unit
Dam Typeearthfill embankment
ReservoirRed Fleet
WatercourseBig Bush Creek
Location10 miles northeast of Vernal, Utah
Original Construction1977 - 1980
Modified Construction
National ID NumberUT82901
Hydrologic Unit Code

Structural Height175.0 ft
Hydraulic Height (Normal Operating Depth at Dam)138.0 ft
Top Parapet (Elevation)
Spillway Crest Elevation5608.2 ft
Crest Elevation5627.0 ft
Crest Length1670.0 ft
Crest Width
Base Width
Volume of Dam Construction Materials2,400,000
Streambed at Dam Axis5483.0 ft
Top of Exclusive Flood Control Pool (Elevation)
Top of Joint Use Pool (Elevation)5608.2 ft
Top of Active Conservation Pool (Elevation)5560.7
Top of Inactive Conservation Pool (Elevation)5528.5 ft
Top of Dead Storage Pool (Elevation)5506.0 ft

Hydraulics & Hydrology
Total Water Storage at Elevation
Maximum Water Surface Elevation5621.0 ft
Normal Water Surface Elevation5506.7 ft
Spillway Type
Auxiliary Spillway
Spillway Capacity at Elevation5510 cfs at 5621.0 ft
Auxiliary Spillway Capacity at Elevation
Uncontrolled Spillway Capacity at Elevation
Outlet Works Capacity at Elevation550 cfs at 5621 ft
Diversion Capacity at Elevation
Drainage Area83 sq mi
Hydrometeorological Report (HMR)HMR
Probable Maximum Flood (PMF) Report

Contact Information
TitleArea Office Manager
OrganizationProvo Area Office
Address302 East 1860 South
CityProvo, UT 84606-7317
Phone (Office)801 379-1101
OrganizationUintah Water Conservancy District
Address78 West 3325 North
CityVernal, UT 84513
Phone (Fax)435 789-1670
Phone (Office)435 789-1651

Last updated: Mar 26, 2009