Steinaker Dam

Flows of Ashley Creek are stored by Steinaker Dam, constructed off stream in Steinaker Draw about 3.5 miles north of Vernal. This dam is a zoned earthfill structure with a height of 162 feet, a crest length of 1,997 feet, and a volume of 1,892,000 cubic yards. Steinaker Reservoir has a total capacity of 38,173 acre-feet, and a surface area of 820 acres.

RegionFacilities in Upper Colorado | Upper Colorado Home Page
ProjectCUP-Vernal Unit
Dam TypeZoned earthfill
Location4 miles northwest of Vernal Utah
Original Construction1959-1962
Modified Construction
National ID Number
Hydrologic Unit Code

Structural Height162.2 ft
Hydraulic Height (Normal Operating Depth at Dam)131.5 ft
Top Parapet (Elevation)
Spillway Crest Elevation
Crest Elevation5527.0 ft
Crest Length1997.0 ft
Crest Width
Base Width
Volume of Dam Construction Materials1,892,000 cu yds
Streambed at Dam Axis5389.0 ft
Top of Exclusive Flood Control Pool (Elevation)
Top of Joint Use Pool (Elevation)
Top of Active Conservation Pool (Elevation)5517.8 ft
Top of Inactive Conservation Pool (Elevation)5446.0 ft
Top of Dead Storage Pool (Elevation)5446.0 v\ft

Hydraulics & Hydrology
Total Water Storage at Elevation
Maximum Water Surface Elevation 5527.0 ft
Normal Water Surface Elevation
Spillway Type
Auxiliary Spillway
Spillway Capacity at Elevation
Auxiliary Spillway Capacity at Elevation
Uncontrolled Spillway Capacity at Elevation
Outlet Works Capacity at Elevation
Diversion Capacity at Elevation
Drainage Area19.0 sq mi
Hydrometeorological Report (HMR)HMR x
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: Apr 10, 2009