Appanoose County Roadgrade Dam L-3-65 Reservoir Report
Last Updated: December 12, 2025
Appanoose County Roadgrade Dam L-3-65, located in Glendale, Iowa, is a local government-owned structure designed by CO Engineer and USDA SCS, USDA NRCS.
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Summary
Completed in 1964, this earth dam on TR-Shoal Creek serves multiple purposes including fire protection, stock, and small fish pond management. With a height of 27 feet and a length of 750 feet, the dam has a storage capacity of 105 acre-feet, making it a vital resource in the region.
Managed by the Iowa DNR and meeting state regulatory standards, the dam has a low hazard potential and a moderate risk assessment. Although the condition assessment is currently not rated, the structure undergoes regular state inspections and permitting processes. Despite its uncontrolled spillway type, the dam plays a crucial role in water resource management in the area, serving as a key component in flood control and irrigation systems for the local community.
This dam, situated in the Rock Island District, exemplifies the collaboration between local government agencies and federal entities like the Natural Resources Conservation Service. As climate change continues to impact water resources, structures like Appanoose County Roadgrade Dam L-3-65 are essential for ensuring water security and environmental sustainability in the region. Its strategic location and multi-purpose design make it a valuable asset for the community, highlighting the importance of proactive dam management and risk mitigation efforts in the face of evolving climate challenges.
Year Completed |
1964 |
Dam Length |
750 |
Dam Height |
27 |
River Or Stream |
TR-SHOAL CREEK |
Primary Dam Type |
Earth |
Surface Area |
5 |
Drainage Area |
0.45 |
Nid Storage |
105 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
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.
Appanoose County Roadgrade Dam L-3-65
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