Soap Creek Watershed Site 68-70 Reservoir Report
Last Updated: December 7, 2025
Soap Creek Watershed Site 68-70, located in Monroe, Iowa, is a vital flood risk reduction structure designed by the USDA NRCS in 2011.
°F
°F
mph
Wind
%
Humidity
Summary
This Earth dam stands at 27 feet tall and spans 625 feet in length, with a storage capacity of 35 acre-feet. Situated in the vicinity of Selma, this site plays a crucial role in managing floodwaters and protecting the surrounding areas from potential damage.
The dam, constructed with a stone core and soil foundation, serves the primary purpose of flood risk reduction along the tributary to Boyd Branch. Despite its low hazard potential, the condition assessment of Soap Creek Watershed Site 68-70 is currently not rated. With a drainage area of 0.15 square miles and a maximum discharge of 100 cubic feet per second, this structure helps to mitigate the impact of flooding events in the region, ensuring the safety and security of local residents and infrastructure.
While specific details about inspection frequency, emergency action plans, and risk management measures are yet to be documented, Soap Creek Watershed Site 68-70 stands as a testament to effective water resource management in Iowa. Owned by the local government and situated within the Rock Island District, this dam showcases the collaborative efforts of various agencies in safeguarding the community against the adverse effects of extreme weather events. As a significant component of the region's flood control infrastructure, this site underscores the importance of proactive measures in ensuring water resource and climate resilience.
Year Completed |
2011 |
Dam Length |
625 |
Dam Height |
27 |
River Or Stream |
Trib to Boyd Branch |
Primary Dam Type |
Earth |
Surface Area |
2 |
Drainage Area |
0.15 |
Nid Storage |
35 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Chariton River Near Rathbun
|
15cfs |
Des Moines River At Ottumwa
|
1090cfs |
Chariton River Near Moulton
|
34cfs |
Fox River At Bloomfield
|
7cfs |
Cedar Creek Near Bussey
|
11cfs |
Des Moines River Near Tracy
|
1400cfs |
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.
Soap Creek Watershed Site 68-70
Rathbun Lake Near Rathbun