Scs-Chigley Sandy Creek Site-08 Reservoir Report
Last Updated: December 17, 2025
SCS-Chigley Sandy Creek Site-08 in Murray, Oklahoma is a state-owned earth dam designed by USDA NRCS in 1955 for flood risk reduction along the TR-Chigley Sandy Creek.
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Summary
The dam stands at 29 feet high with a hydraulic height of 23 feet and a length of 875 feet, providing a storage capacity of 149 acre-feet. Despite its fair condition assessment, the dam has a high hazard potential due to its location and design, making it crucial for state regulatory agencies like OWRB to conduct regular inspections and enforcement.
With a spillway type of 'Controlled' and a maximum discharge of 926 cubic feet per second, SCS-Chigley Sandy Creek Site-08 serves a primary purpose of flood risk reduction. The dam's risk assessment is rated as 'Very High (1)', highlighting the need for emergency action plans and risk management measures to mitigate potential hazards. The dam is under the jurisdiction of the state of Oklahoma and is subject to state permitting, inspection, and enforcement, indicating a proactive approach to ensuring public safety and water resource management.
As a key infrastructure in the Fort Worth District under the oversight of the Natural Resources Conservation Service, SCS-Chigley Sandy Creek Site-08 plays a vital role in protecting the surrounding area from flooding events. With a designated emergency action plan and updated hazard potential assessment, this dam serves as a critical asset in maintaining water security and climate resilience in the region.
Year Completed |
1955 |
Dam Length |
875 |
Dam Height |
29 |
River Or Stream |
TR-CHIGLEY SANDY CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
23 |
Nid Storage |
149 |
Structural Height |
29 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
29 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Rock Creek At Sulphur
|
8cfs |
Washita River Near Pauls Valley
|
327cfs |
Washita River Near Dickson
|
314cfs |
Pennington Creek Near Reagan
|
47cfs |
Blue River Near Connerville
|
47cfs |
Walnut Creek At Purcell
|
29cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Rock Creek - Chickasaw National Rec Area
Central - Chickasaw National Rec Area
Central Campground
Cold Springs - Chickasaw National Rec Area
Guy Sandy Campground
The Point - Chickasaw National Rec Area
Scs-Chigley Sandy Creek Site-08