Scott Reservoir Reservoir Report

Last Updated: December 5, 2025

Scott Reservoir, located in Lewis and Clark County, Montana, is a vital water resource managed by the local government for water supply purposes.


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Summary

Completed in 1952, this Earth-type dam on Ruby Creek stands at a height of 32.2 feet, with a storage capacity of 288 acre-feet and a surface area of 30 acres. The reservoir is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and is inspected regularly to ensure its structural integrity and safety.

With its uncontrolled spillway and valve outlet gates, Scott Reservoir has a high hazard potential but is currently assessed to be in fair condition. The reservoir's emergency action plan (EAP) has been recently updated, meeting safety guidelines to manage potential risks associated with its operation. Despite its moderate risk assessment, Scott Reservoir remains a crucial water source for the Remini community and surrounding areas, highlighting the importance of its maintenance and regulation for sustainable water management in the region. Water resource and climate enthusiasts can appreciate the significance of Scott Reservoir in providing essential water supply and its role in supporting local ecosystems.

Year Completed

1952

Dam Length

1200

Dam Height

32.2

River Or Stream

RUBY CREEK

Primary Dam Type

Earth

Surface Area

30

Hydraulic Height

25.4

Drainage Area

22.9

Nid Storage

288

Outlet Gates

Valve

Hazard Potential

High

Foundations

Rock

Nid Height

32
       
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.