Richland Co Wrd Reservoir Report

Last Updated: December 13, 2025

Richland CO Wrd is a local government-owned dam located in Richland County, North Dakota, along Antelope Creek.


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Summary

Constructed in 2001, this earth dam stands at a height of 9.5 feet and serves the primary purpose of flood risk reduction. With a storage capacity of 224.4 acre-feet and a normal storage of 8.2 acre-feet, it covers a surface area of 6.2 acres and has a drainage area of 28 square miles.

Managed by the North Dakota State Water Commission, Richland CO Wrd has a low hazard potential and a moderate risk assessment rating. It is regulated, permitted, inspected, and enforced by state authorities, ensuring its compliance with safety standards. The dam features an uncontrolled spillway with a width of 60 feet and has not been modified since its completion. While its condition assessment is currently not rated, the dam's emergency action plan status and risk management measures are yet to be determined.

For water resource and climate enthusiasts, Richland CO Wrd presents an interesting case study in local flood risk reduction infrastructure. Its design by FEMA and Interstate Eng. Inc. showcases collaborative efforts in ensuring community safety from potential inundation events. With its location in a region prone to flooding, the dam serves as a vital defense mechanism against water overflow, highlighting the importance of proper dam maintenance, inspection, and emergency preparedness. Overall, Richland CO Wrd stands as a testament to the proactive measures taken by local authorities in safeguarding their community from water-related hazards.

Year Completed

2001

Dam Height

9.5

River Or Stream

ANTELOPE CREEK

Primary Dam Type

Earth

Surface Area

6.2

Drainage Area

28

Nid Storage

224.4

Outlet Gates

None

Hazard Potential

Low

Foundations

Soil

Nid Height

10
       
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.
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