Summary
Built in 1995 by the USFWS, this structure serves as a fish and wildlife pond along the Little Deep Creek. With a height of 7.6 feet and a length of 336 feet, the dam has a storage capacity of 54 acre-feet and covers a surface area of 8 acres.
Operated by the North Dakota State Water Commission, Mcilroy Dam is regulated, permitted, inspected, and enforced by the state agency. The dam features an uncontrolled spillway with a width of 186 feet, making it suitable for low hazard potential according to assessments. Despite not having a formal condition rating, the dam's risk level is moderate, prompting the need for risk management measures to ensure its continued safety and functionality.
Mcilroy Dam plays a vital role in maintaining the ecological balance in the area by providing habitat for fish and wildlife. Its efficient design and state-regulated maintenance make it a reliable structure for water resource and climate enthusiasts to appreciate and study in the beautiful landscape of North Dakota.
Year Completed |
1995 |
Dam Length |
336 |
Dam Height |
7.6 |
River Or Stream |
LITTLE DEEP CREEK |
Primary Dam Type |
Earth |
Surface Area |
8 |
Drainage Area |
119 |
Nid Storage |
54 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
8 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Deep River Nr Upham
|
1cfs |
Souris River Above Minot
|
5cfs |
Souris River Nr Foxholm
|
0cfs |
Souris River Nr Verendrye
|
18cfs |
Souris River Nr Bantry
|
73cfs |
Willow Creek Nr Willow City
|
10cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Mcilroy Dam; Bob