Parrish Dam; Lloyd Reservoir Report

Last Updated: December 13, 2025

Parrish Dam; Lloyd, located in McKenzie, North Dakota, is a privately owned structure primarily used for irrigation purposes.


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Summary

Completed in 1974, this earth dam stands at a height of 24.7 feet and has a storage capacity of 59.6 acre-feet. The dam is regulated by the North Dakota State Water Commission (NDSWC) and is subject to state permitting, inspection, and enforcement.

The dam's spillway, measuring 28 feet in width, is uncontrolled, and the overall hazard potential of the structure is currently classified as undetermined. While the condition assessment is not rated, the risk assessment for Parrish Dam; Lloyd is moderate. The structure is located in the watershed of Northfork Creek-TR and falls under the jurisdiction of the St. Paul District of the US Army Corps of Engineers. With its strategic location and critical purpose, this dam plays a crucial role in water resource management in the region.

As a key component of the local irrigation infrastructure, Parrish Dam; Lloyd serves an essential function in supporting agriculture and maintaining water availability in the area. With ongoing state regulation and oversight, this dam underscores the importance of maintaining and securing water resources in a changing climate. Enthusiasts of water resources and climate management will find interest in the operational details and regulatory framework surrounding this significant structure.

Year Completed

1974

Dam Height

24.7

River Or Stream

NORTHFORK CREEK-TR

Primary Dam Type

Earth

Surface Area

8

Drainage Area

0.7

Nid Storage

59.6

Hazard Potential

Undetermined

Foundations

Unlisted/Unknown

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.