Clarke Co. Roadgrade Dam 8-73-25 Reservoir Report
Nearby: Stills Dam Green Dam
Last Updated: December 10, 2025
Clarke Co.
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Summary
Roadgrade Dam 8-73-25, located in Indianola, Iowa, is a local government-owned structure built in 1992 by the Soil Conservation Service (SCS). The dam, situated on TR-Squaw Creek, serves multiple purposes including fire protection, stock, and small fish pond management. With a height of 43 feet and a length of 1070 feet, the earth dam has a storage capacity of 155 acre-feet and covers a surface area of 4 acres.
Managed by the Iowa Department of Natural Resources, the dam is classified as low hazard potential and has not been rated for its current condition. Despite being uncontrolled, the spillway type, the dam has a moderate risk assessment score of 3. While the structure has not undergone recent inspection, it is subject to state regulatory oversight and permitting requirements. The dam's location in Clarke County adds to its significance as a water resource management infrastructure in the region.
Overall, Clarke Co. Roadgrade Dam 8-73-25 plays a crucial role in water resource management and environmental conservation efforts in Iowa. As a part of the Kansas City District, the dam's construction and maintenance highlight the collaboration between local governments and state agencies to ensure the safety and functionality of such vital infrastructure. With its diverse purposes and moderate risk assessment, the dam stands as a testament to the importance of sustainable water resource management in the face of changing climate conditions.
Year Completed |
1992 |
Dam Length |
1070 |
Dam Height |
43 |
River Or Stream |
TR- SQUAW CREEK |
Primary Dam Type |
Earth |
Surface Area |
4 |
Drainage Area |
0.45 |
Nid Storage |
155 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
43 |
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.
Clarke Co. Roadgrade Dam 8-73-25