Woodhouse-Lattin Reservoir Report

Last Updated: December 5, 2025

Woodhouse-Lattin is a private dam located in Montana, specifically in Teton County near the city of Vaughn.


°F

°F

mph

Wind

%

Humidity

Summary

Built in 1963 by the USDA NRCS, this earth dam serves primarily for recreational purposes along TR-Muddy Creek. With a height of 34 feet and a storage capacity of 98 acre-feet, Woodhouse-Lattin offers a serene environment for water resource and climate enthusiasts to enjoy outdoor activities.

Managed by the DNRC, Woodhouse-Lattin is classified with a low hazard potential and moderate risk assessment. The spillway type is uncontrolled with a width of 18 feet, ensuring safe water release during high flow events. While the dam's condition is currently not rated, regular inspections, permitting, and enforcement by state agencies contribute to its overall safety and stability.

Located within Congressional District 00 of Montana, Woodhouse-Lattin showcases the importance of proper dam management and maintenance for both recreational and environmental purposes. As a focal point for water resource and climate enthusiasts, this dam serves as a reminder of the delicate balance between human activities and nature's ecosystems.

Year Completed

1963

Dam Length

130

Dam Height

34

River Or Stream

TR-MUDDY CREEK

Primary Dam Type

Earth

Hydraulic Height

34

Drainage Area

0.5

Nid Storage

98

Hazard Potential

Low

Nid Height

34
       
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.