Upper Locust Creek Watershed Site L-35 Reservoir Report
Last Updated: December 9, 2025
Located in Wayne County, Iowa, the Upper Locust Creek Watershed Site L-35 is a vital earth dam structure designed by the USDA NRCS to serve multiple purposes, including fire protection, stock watering, and small fish pond management.
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Summary
Completed in 1995, this dam stands at a height of 26 feet and has a storage capacity of 80 acre-feet, with a surface area of 4.1 acres and a drainage area of 0.25 square miles. The dam is regulated by the Iowa Department of Natural Resources and is inspected, permitted, and enforced by state authorities to ensure its structural integrity and functionality.
The dam's spillway type is classified as uncontrolled, with a length of 382 feet, making it an essential component for flood risk reduction in the area. Despite its low hazard potential, the dam is considered to have a moderate risk level, with a rating of 3 on the risk assessment scale. The condition assessment of the dam is currently not rated, indicating a need for further evaluation and maintenance to ensure its long-term effectiveness. While no emergency action plan (EAP) has been prepared for the site, the dam meets regulatory guidelines and serves as a critical water resource management structure in the Upper Locust Creek watershed.
Managed by local government authorities, the Upper Locust Creek Watershed Site L-35 plays a crucial role in enhancing water security and environmental sustainability in the region. With its strategic location along the TR-LOCUST CREEK river/stream, this dam serves as a key infrastructure for water supply, flood control, and ecological conservation efforts. As climate change impacts intensify, the effective management and maintenance of such water resource structures become increasingly important to mitigate risks and protect local communities from potential water-related hazards.
Year Completed |
1995 |
Dam Length |
382 |
Dam Height |
26 |
River Or Stream |
TR- LOCUST CREEK |
Primary Dam Type |
Earth |
Surface Area |
4.1 |
Drainage Area |
0.25 |
Nid Storage |
80 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
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.
Upper Locust Creek Watershed Site L-35
Corydon Lake