Oak Ridge Reservoir Report

Last Updated: January 11, 2026

Oak Ridge is a state-owned structure located in Teton County, Montana, specifically in the city of Collins.


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Summary

This earth dam, completed in 1943, serves multiple purposes including fire protection, stock, and small fish pond management. With a dam height of 15 feet and a storage capacity of 55 acre-feet, Oak Ridge plays a crucial role in water resource management in the area. The dam is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and is subject to state permitting, inspection, and enforcement.

The primary purpose of Oak Ridge is to provide fire protection and support various water-related activities in the region. Despite its low hazard potential and current "Not Rated" condition assessment, the structure continues to serve its intended functions effectively. The dam is situated along TR-Spring Creek and is under the jurisdiction of the state of Montana. Owned by the state and not federally managed, Oak Ridge stands as a testament to sustainable water resource management practices in the area.

With a latitude of 48.1301 and a longitude of -112.287, Oak Ridge is strategically positioned to support the needs of the local community. Its location in Congressional District 00, Montana, under the representation of Greg Gianforte, ensures that the structure receives the necessary support and oversight. As a key component of the water infrastructure in the region, Oak Ridge contributes to the overall resilience and sustainability of water resources in Teton County, Montana.

Year Completed

1943

Dam Length

300

Dam Height

15

River Or Stream

TR-SPRING CREEK

Primary Dam Type

Earth

Hydraulic Height

15

Nid Storage

55

Hazard Potential

Low

Nid Height

15
       
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.