Devinney Reservoir Report

Last Updated: December 5, 2025

Devinney is a local government-owned dam located in Lakewood, Colorado, along the S.


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Summary

Lakewood Gulch. Completed in 2006, this earth dam stands at a height of 17 feet and has a storage capacity of 64 acre-feet. The primary purpose of Devinney is for irrigation, with additional benefits for recreation.

Managed by the Department of Water Resources (DWR) in Colorado, Devinney is regulated, permitted, inspected, and enforced by the state. The dam has a significant hazard potential but is currently in satisfactory condition, as assessed in April 2020. With a moderate risk rating of 3, there are no emergency action plans specifically prepared for this dam as of the latest data update in March 2021.

Devinney plays a crucial role in water resource management in Jefferson County, Colorado, and ensures water supply for irrigation and recreational activities. Despite its significant hazard potential, the dam is deemed safe and well-maintained, meeting state regulatory standards for inspection and enforcement. As a key infrastructure in the region, Devinney continues to support the local community while being monitored for any potential risks or issues.

Year Completed

2006

Dam Length

340

Dam Height

17

River Or Stream

S. LAKEWOOD GULCH

Primary Dam Type

Earth

Surface Area

4

Hydraulic Height

15

Nid Storage

64

Structural Height

19

Hazard Potential

Significant

Foundations

Rock, Soil

Nid Height

19
       
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.