Scs-Caddo Creek Site -18 Reservoir Report

Last Updated: December 20, 2025

SCS-Caddo Creek Site -18, also known as Rock Creek, is a state-owned dam located in Carter County, Oklahoma.


°F

°F

mph

Wind

%

Humidity

Summary

Built in 1979 by the USDA NRCS, this Earth dam stands at a height of 53 feet and serves primarily for water supply purposes. With a maximum storage capacity of 5377 acre-feet and a normal storage of 2573 acre-feet, the dam covers a surface area of 248 acres and has a drainage area of 5.61 square miles.

The dam's spillway, which is of the controlled type, has a width of 4 feet. Despite a fair condition assessment, the dam is classified as having a high hazard potential and a very high risk assessment rating. Inspections are conducted regularly, with the last one taking place in June 2011. The dam is regulated by the Oklahoma Water Resources Board and is subject to state permitting, inspection, and enforcement.

Located in the city of Ardmore, SCS-Caddo Creek Site -18 plays a crucial role in water resource management in the region. As a site of interest for water resource and climate enthusiasts, its design and construction by the Natural Resources Conservation Service reflect a commitment to sustainable water supply practices. With its significant storage capacity and controlled spillway, the dam serves as a vital infrastructure for ensuring water security in Carter County, Oklahoma.

Year Completed

1979

Dam Length

1030

Dam Height

53

River Or Stream

ROCK CREEK

Primary Dam Type

Earth

Surface Area

248

Hydraulic Height

50

Drainage Area

5.61

Nid Storage

5377

Structural Height

53

Outlet Gates

Valve - 1

Hazard Potential

High

Foundations

Soil

Nid Height

53
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.