Norman Dam

Little River has eroded its shallow valley in thick clastic sedimentaries of the Permain red bed series.  The strata dip gently in an upstream direction.  Widespread mantle of sandy soil obscures the bedrock, isolated outcrops and numerous exposures in road cuts in the area reveal the nature and structure of the rocks.  Alluvial terrace deposits on the valley sides are poorly developed to absent.  The river has deposited 35 to 50 feet of fine grained alluvium in building up the present floodplain, and it is in these deposits that the river was channelized about thirty years ago as a flood control measure.  Sedimentary rocks comprising in descending order the Gerber, the Wellington and the Stillwater formations of the Enid group of the lower Permian age underlie the vicinity of the Norman damsite and reservoir basin.

RegionFacilities in Great Plains | Great Plains Home Page
CountyClevelandand Oklahoma
Dam Type
ReservoirLake Thunderbird
WatercourseLittle River
Original Construction1962-1965
Modified Construction
National ID NumberOK30018
Hydrologic Unit Code

Structural Height144 ft
Hydraulic Height (Normal Operating Depth at Dam)94.7 ft
Top Parapet (Elevation)
Spillway Crest Elevation
Crest Elevation1071.0 ft
Crest Length7220 ft
Crest Width10 ft
Base Width
Volume of Dam Construction Materials
Streambed at Dam Axis969 ft
Top of Exclusive Flood Control Pool (Elevation)
Top of Joint Use Pool (Elevation)1039.0 ft
Top of Active Conservation Pool (Elevation)1039.0 ft
Top of Inactive Conservation Pool (Elevation)1010.0 ft
Top of Dead Storage Pool (Elevation)997 ft

Hydraulics & Hydrology
Total Water Storage at Elevation
Maximum Water Surface Elevation
Normal Water Surface Elevation1064.7 ft
Spillway Type
Auxiliary Spillway
Spillway Capacity at Elevation2840 cfs at 1049.4 ft
Auxiliary Spillway Capacity at Elevation
Uncontrolled Spillway Capacity at Elevation
Outlet Works Capacity at Elevation6950 cfs at 1064.7 ft
Diversion Capacity at Elevation
Drainage Area
Hydrometeorological Report (HMR)
Probable Maximum Flood (PMF) Report

Contact Information
TitleArea Office Manager
OrganizationOklahoma-Texas Area Office
Address5316 HWY 290 W, Suite 510
CityAustin, TX 78735-8931
Phone (Office)512 899-4150
Phone (FAX)512 899-4179
OrganizationCentral Oklahoma Master Conservancy District
AddressRoute 4, Box 275
CityNorman, OK 73071
Phone (Office)405 329-5228

Last updated: Apr 02, 2013