Akers & Tarr Reservoir Report

Last Updated: December 5, 2025

Akers & Tarr is a private irrigation structure located in Weld County, Colorado, along the St.


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Summary

Vrain Creek. Constructed in 1918 by the USDA NRCS, this earth dam stands at a height of 38 feet and has a length of 940 feet, providing a storage capacity of 256 acre-feet for agricultural purposes. The dam is regulated by the Colorado Department of Water Resources and undergoes regular inspections to ensure its structural integrity and safety.

The significant hazard potential of Akers & Tarr suggests the importance of proper risk management measures to mitigate any potential threats. Despite being in satisfactory condition as of the last assessment in 2019, ongoing maintenance and monitoring are crucial to ensure the dam's continued reliability. The dam's uncontrolled spillway and moderate risk assessment rating underline the need for effective emergency preparedness and response protocols in the event of a flood or other unexpected events.

Overall, Akers & Tarr serves as a vital resource for irrigation in the region, highlighting the intersection of water resource management and climate resilience. Its historical significance and ongoing importance in supporting agricultural activities underscore the need for proactive stewardship and careful oversight to safeguard both the structure and the surrounding environment.

Year Completed

1918

Dam Length

940

Dam Height

38

River Or Stream

ST VRAIN CREEK-TR

Primary Dam Type

Earth

Surface Area

17

Hydraulic Height

38

Nid Storage

256

Structural Height

38

Hazard Potential

Significant

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.