South Muddy Creek Reservoir Report

Nearby: Ryan Sueno

Last Updated: December 4, 2025

South Muddy Creek is a vital water resource in Las Animas, Colorado, serving as an irrigation source for the local community.


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Summary

The dam, constructed in 1929 by USDA NRCS, stands at 25 feet high and spans 1250 feet in length, with a storage capacity of 123 acre-feet. The dam's primary purpose is to support agricultural activities in the region, ensuring a reliable water supply for farmers along South Muddy Creek.

Despite its age, South Muddy Creek Dam has a low hazard potential and a moderate risk assessment rating. The spillway, with a width of 100 feet, is uncontrolled, allowing for safe water release during periods of high flow. While the dam's condition assessment is currently unavailable, ongoing risk management measures are in place to maintain the structure's integrity and ensure the safety of downstream communities. With its strategic location and importance for irrigation, South Muddy Creek Dam remains a key asset in the region's water management infrastructure.

Managed by private owners, South Muddy Creek Dam exemplifies the collaborative efforts between government agencies and local stakeholders to sustainably manage water resources in Colorado. As a key feature along South Muddy Creek, this dam plays a crucial role in supporting agricultural livelihoods and maintaining a reliable water supply for the community of Gardner. With a rich history dating back to the early 20th century, South Muddy Creek Dam stands as a testament to the resilience and ingenuity of those who have worked to harness the power of water for the benefit of all.

Year Completed

1929

Dam Length

1250

Dam Height

25

River Or Stream

South Muddy Creek

Primary Dam Type

Earth

Hydraulic Height

21

Drainage Area

4.11

Nid Storage

123

Structural Height

24

Hazard Potential

Low

Nid Height

25
       
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.