Mcnulty Lake Dam Reservoir Report
Nearby: Allison & Haas Lake Dam Boyd Lake Dam
Last Updated: December 6, 2025
Mcnulty Lake Dam, located in Phelps County, Missouri, is a privately owned earth dam primarily used for recreational purposes.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1989, the dam stands at a height of 34 feet and has a maximum storage capacity of 491 acre-feet. With a surface area of 27 acres and a drainage area of 1637 acres, the dam plays a crucial role in regulating the flow of the Grouro Creek.
Despite its significance for recreation, Mcnulty Lake Dam is classified as having a high hazard potential due to its condition being rated as "Not Rated" and lacking recent inspections. This raises concerns about the safety and integrity of the structure, especially in the face of potential climate-related challenges. Without proper assessments and risk management measures in place, the dam's ability to withstand extreme weather events and protect downstream communities could be compromised. Climate enthusiasts may find this case of particular interest as it highlights the importance of proactive maintenance and monitoring in the context of changing climatic conditions.
Year Completed |
1989 |
Dam Height |
34 |
River Or Stream |
GROURO CREEK |
Primary Dam Type |
Earth |
Surface Area |
27 |
Hydraulic Height |
29 |
Drainage Area |
1637 |
Nid Storage |
491 |
Structural Height |
34 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
34 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Mcnulty Lake Dam