Scs-Cottonwood Creek Site-33 Reservoir Report

Last Updated: December 22, 2025

SCS-Cottonwood Creek Site-33, located in Piedmont, Oklahoma, is a state-regulated Earth dam built in 1965 by the USDA NRCS with a primary purpose of Flood Risk Reduction.


°F

°F

mph

Wind

%

Humidity

Summary

The dam stands at a height of 34 feet, with a length of 2050 feet, and has a storage capacity of 838 acre-feet. The dam is situated on the TR-DEER CREEK, under the jurisdiction of the OWRB, and falls under the Tulsa District of the USACE.

Despite being classified as having a low hazard potential, the Risk Assessment for SCS-Cottonwood Creek Site-33 indicates a very high risk level (1). The dam is equipped with a controlled spillway and a single valve outlet gate. Although the condition assessment is marked as Not Rated, the dam has not been modified in recent years and was last inspected in 1994 with a scheduled inspection frequency of 5 years. The emergency action plan (EAP) status and readiness for this site are currently unspecified.

Water resource and climate enthusiasts will be intrigued by the unique characteristics and risk profile of SCS-Cottonwood Creek Site-33. With its significant storage capacity and flood risk reduction purpose, the dam serves a vital role in managing water resources in the Canadian County area. The discrepancy between the hazard potential and risk assessment highlights the importance of ongoing monitoring and maintenance to ensure the safety and effectiveness of this critical infrastructure.

Year Completed

1965

Dam Length

2050

Dam Height

34

River Or Stream

TR-DEER CREEK

Primary Dam Type

Earth

Surface Area

25

Hydraulic Height

34

Nid Storage

838

Structural Height

34

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

34
       
Seasonal Comparison

Weather Forecast

View more

Nearby Streamflow Levels

SCS-Cottonwood Creek Site-33North Canadian River near Yukon Preview North Canadian River Near Yukon
98.1cfs
98cfs
SCS-Cottonwood Creek Site-33North Canadian River blw Lk Overholser nr OKC Preview North Canadian River Blw Lk Overholser Nr Okc
3.34cfs
3cfs
SCS-Cottonwood Creek Site-33North Canadian River near El Reno Preview North Canadian River Near El Reno
61.6cfs
62cfs
SCS-Cottonwood Creek Site-33Cottonwood Creek near Seward Preview Cottonwood Creek Near Seward
62.4cfs
62cfs
SCS-Cottonwood Creek Site-33North Canadian River at Britton Rd at OKC Preview North Canadian River At Britton Rd At Okc
48.2cfs
48cfs
SCS-Cottonwood Creek Site-33North Canadian River near Calumet Preview North Canadian River Near Calumet
76.9cfs
77cfs

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.
View more

Nearby Reservoirs