Scs-Sugar Creek Site-002 Reservoir Report

Last Updated: December 6, 2025

SCS-Sugar Creek Site-002 in Gracemont, Oklahoma, is a state-owned dam constructed in 1967 by the USDA NRCS with a primary purpose of flood risk reduction.


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Summary

The dam, standing at a structural height of 52 feet and a hydraulic height of 47 feet, spans a length of 550 feet and has a storage capacity of 299 acre-feet. Situated on TR-Sugar Creek in Caddo County, the dam is regulated by the Oklahoma Water Resources Board and is equipped with a controlled spillway and a single valve outlet gate.

Despite being classified as having a low hazard potential, the dam at SCS-Sugar Creek Site-002 poses a very high risk of failure, according to a risk assessment rating of 1. However, the condition of the dam has not been officially rated, and it has not undergone inspection since January 1980. While the dam does not currently have an Emergency Action Plan (EAP) in place and lacks updated contact information and inundation maps, it is still subject to state regulatory oversight, inspection, and enforcement to ensure the safety and integrity of the structure for flood risk mitigation in the region.

Year Completed

1967

Dam Length

550

Dam Height

52

River Or Stream

TR-SUGAR CREEK

Primary Dam Type

Earth

Surface Area

8

Hydraulic Height

47

Nid Storage

299

Structural Height

52

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

52
       
Seasonal Comparison

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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.