Hahns Peak Reservoir Report

Last Updated: December 5, 2025

Hahns Peak, located in Routt County, Colorado, is a state-regulated dam built in 1978 for recreational purposes.


°F

°F

mph

Wind

%

Humidity

Summary

Standing at a height of 38 feet and spanning 267 feet in length, this earth dam on Willow Creek provides essential storage capacity of 698 acre-feet for fish and wildlife pond maintenance and recreational activities. The dam has a low hazard potential and is in fair condition as of the last inspection in September 2019.

With a surface area of 34 acres and a drainage area of 6 square miles, Hahns Peak serves as a vital resource for the local community, offering a maximum discharge capacity of 2568 cubic feet per second. The dam's spillway, with a width of 39 feet, is uncontrolled, and the overall risk assessment for the structure is moderate. This picturesque location in Steamboat Springs is not only a recreational hotspot but also an important water management asset, ensuring the sustainability of the surrounding ecosystem and enhancing the quality of life for residents and visitors alike.

Year Completed

1978

Dam Length

267

Dam Height

38

River Or Stream

WILLOW CREEK

Primary Dam Type

Earth

Surface Area

34

Hydraulic Height

38

Drainage Area

6

Nid Storage

698

Structural Height

38

Hazard Potential

Low

Nid Height

38
       
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.