Mc Mullin Dam Reservoir Report
Last Updated: December 6, 2025
Mc Mullin Dam, located in Iowa's Wapello County near the city of ROME, serves primarily as a fire protection reservoir, stock pond, and small fish pond.
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Summary
Completed in 2002, this earth dam stands at a height of 22 feet and spans a length of 570 feet, with a storage capacity of 66 acre-feet and a surface area of 5.8 acres. Managed by a private owner, the dam is regulated by the Iowa Department of Natural Resources, ensuring that it meets state permitting, inspection, and enforcement requirements.
Situated on TR- BUCKEYE CREEK, Mc Mullin Dam has a low hazard potential and a moderate risk assessment rating. Despite its condition being currently unrated, the dam is designed and maintained by the Natural Resources Conservation Service (NRCS) to meet safety standards. While the dam does not feature any outlet gates or locks, its spillway type is uncontrolled, with a width of 1 foot. With a drainage area of 0.21 square miles, the dam plays a crucial role in water resource management and climate resilience efforts in the region.
Overall, Mc Mullin Dam stands as a vital infrastructure for water storage and management in the area, contributing to fire protection, livestock watering, and aquatic habitat enhancement. As a part of the Rock Island District, the dam's construction, operation, and maintenance are overseen by the private owner, with regulatory support from the Iowa DNR. With its strategic location and design, Mc Mullin Dam exemplifies the importance of sustainable water resource practices for both human and environmental well-being in Iowa.
Year Completed |
2002 |
Dam Length |
570 |
Dam Height |
22 |
River Or Stream |
TR- BUCKEYE CREEK |
Primary Dam Type |
Earth |
Surface Area |
5.8 |
Drainage Area |
0.21 |
Nid Storage |
66 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
22 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Des Moines River At Ottumwa
|
1090cfs |
North Skunk River Near Sigourney
|
97cfs |
Fox River At Bloomfield
|
7cfs |
Des Moines River At Keosauqua
|
1800cfs |
Cedar Creek Near Oakland Mills
|
10cfs |
South Skunk River Near Oskaloosa
|
485cfs |
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.
Mc Mullin Dam