North Tucks Slough Dam Reservoir Report

Last Updated: December 5, 2025

The North Tucks Slough Dam, located in Beaverhead, Montana, was completed in 1990 by Ducks Unlimited for the primary purpose of creating a Fish and Wildlife Pond.


°F

°F

mph

Wind

%

Humidity

Summary

Managed by the Fish and Wildlife Service, this Earth-type dam stands at a height of 13 feet and has a maximum storage capacity of 560 acre-feet. Despite its low hazard potential, the dam's condition assessment in 2018 was marked as poor, indicating a need for maintenance and repairs to ensure its structural integrity.

The dam spans 5595 feet across Red Rock Creek, with a controlled spillway and a maximum discharge capacity of 98 cfs. The surrounding surface area is 103 acres, serving a drainage area of 0.42 square miles. While the dam's risk assessment is classified as very high, the lack of recent updates on emergency action plans and inundation maps raises concerns about the readiness for potential incidents. With its critical role in supporting local wildlife and water resources, ensuring the North Tucks Slough Dam's safety and functionality is essential for protecting the surrounding ecosystem and communities.

Year Completed

1990

Dam Length

5595

Dam Height

13

River Or Stream

RED ROCK CREEK

Primary Dam Type

Earth

Surface Area

103

Hydraulic Height

10

Drainage Area

0.42

Nid Storage

560

Structural Height

13

Outlet Gates

Other Controlled

Hazard Potential

Low

Foundations

Soil

Nid Height

13
       
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.