Grover W. Mundell #1 Reservoir Report

Last Updated: December 5, 2025

Grover W.


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Summary

Mundell #1 is a privately-owned irrigation dam located in Baca County, Colorado, along the Horse Creek-TR river. Built in 1980 by the USDA NRCS, this earth dam stands at a height of 32 feet and has a storage capacity of 85 acre-feet. The dam serves the primary purpose of irrigation and has a normal storage capacity of 40 acre-feet, covering a surface area of 9 acres.

Despite being classified as having low hazard potential, Grover W. Mundell #1 is considered to have a high risk level (2) due to its condition assessment being listed as "Not Rated." The dam has not undergone a recent inspection since June 1989, and there is no Emergency Action Plan (EAP) in place. The dam does not have a spillway and has a maximum discharge capacity of 5000 cfs.

Located in a rural area, Grover W. Mundell #1 plays a vital role in supporting agricultural activities in the region. It is regulated by the Colorado State Department of Water Resources and is subject to regular inspections and enforcement measures. With its strategic location and crucial role in water resource management, Grover W. Mundell #1 serves as a key infrastructure for ensuring sustainable water use in the area.

Year Completed

1980

Dam Length

1000

Dam Height

22

River Or Stream

HORSE CREEK-TR

Primary Dam Type

Earth

Surface Area

9

Hydraulic Height

22

Drainage Area

2

Nid Storage

85

Structural Height

32

Hazard Potential

Low

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.