Draper Dam Reservoir Report
Nearby: Stoner Dam Grundle Dam
Last Updated: December 25, 2025
Draper Dam, located in Fremont County, Iowa, was completed in 1963 by the USDA NRCS with a primary purpose of fire protection, stock watering, and small fish pond management.
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Summary
This earth dam stands at 46 feet tall and spans 540 feet in length, creating a reservoir with a storage capacity of 145 acre-feet and a surface area of 6 acres. The dam is regulated by the Iowa Department of Natural Resources and is inspected, permitted, and enforced by state authorities.
Despite being classified with a low hazard potential, Draper Dam is considered to have a moderate risk level, with a rating of 3 out of 5. The dam has not been rated for its condition assessment, but it is regularly inspected by state agencies. While the dam has not experienced any significant modifications or emergencies in recent years, its emergency action plan status and risk management measures are not clearly documented. Overall, Draper Dam serves as an important resource for water management and agricultural activities in the region, showcasing the collaboration between private owners and state regulators to ensure its safety and functionality.
Year Completed |
1963 |
Dam Length |
540 |
Dam Height |
46 |
River Or Stream |
TR-COON RUN |
Primary Dam Type |
Earth |
Surface Area |
6 |
Drainage Area |
0.4 |
Nid Storage |
145 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
46 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
West Nishnabotna River At Randolph
|
349cfs |
Nishnabotna River Above Hamburg
|
762cfs |
Missouri River At Nebraska City
|
25100cfs |
Weeping Water Creek At Union
|
20cfs |
East Nishnabotna River At Red Oak
|
302cfs |
Little Nemaha River At Auburn
|
82cfs |
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.
Draper Dam