Clinton Flood Control - Whittier Dam Reservoir Report
Nearby: Clinton Flood Control - May Pond Dam Clinton Flood Control - First Congregational Church Dam
Last Updated: December 13, 2025
Located in Clinton, Iowa, the Clinton Flood Control - Whittier Dam stands as a testament to effective flood risk reduction efforts in the region.
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Summary
Completed in 1994, this earth dam spans 400 feet in length and reaches a height of 24 feet, with a storage capacity of 65 acre-feet. Managed by the local government and regulated by the Iowa Department of Natural Resources, this dam plays a crucial role in protecting the surrounding area from potential flooding along the TR- Mississippi River.
With a high hazard potential but a satisfactory condition assessment, the Clinton Flood Control - Whittier Dam is regularly inspected and maintained to ensure its effectiveness in mitigating flood risks. The dam's uncontrolled spillway and soil foundation contribute to its overall design, supported by Shive-Hattery, Inc. The dam's location and design highlight its strategic placement and functionality in safeguarding the community against potential water-related emergencies.
As climate change continues to impact water resources and intensify extreme weather events, structures like the Clinton Flood Control - Whittier Dam play a vital role in protecting communities and infrastructure. With a moderate risk assessment rating, ongoing risk management measures are essential to ensure the dam's continued effectiveness in flood risk reduction. This dam serves as a critical asset in the region's water resource management and climate resilience efforts, reflecting a proactive approach to safeguarding against the impacts of a changing climate.
Year Completed |
1994 |
Dam Length |
400 |
Dam Height |
24 |
River Or Stream |
TR- MISSISSIPPI RIVER |
Primary Dam Type |
Earth |
Drainage Area |
0.37 |
Nid Storage |
65 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
24 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Mississippi River At Clinton
|
25000cfs |
Wapsipinicon River Near De Witt
|
559cfs |
Rock River Near Joslin
|
4400cfs |
Crow Creek At Bettendorf
|
5cfs |
Rock River At Como
|
3350cfs |
Green River Near Geneseo
|
185cfs |
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.
Clinton Flood Control - Whittier Dam
South 4th Street Clinton