Walton Lake Dam Reservoir Report
Last Updated: March 5, 2026
Walton Lake Dam in Fairfield, Iowa, is a significant earth dam that was completed in 1900 for water supply purposes.
Summary
The dam stands at a height of 35 feet and spans a length of 900 feet, holding a maximum storage capacity of 2,500 acre-feet. With a normal storage capacity of 920 acre-feet and a surface area of 75 acres, the dam plays a crucial role in managing water resources in the region.
Located on TR-Crow Creek, the Walton Lake Dam is regulated by the Iowa Department of Natural Resources (DNR) and undergoes regular inspections to ensure its structural integrity. Despite being classified as having a significant hazard potential, the dam's condition is assessed as satisfactory, with a moderate risk level. The spillway, with a width of 33 feet, is uncontrolled, emphasizing the importance of proper maintenance and monitoring to mitigate potential risks associated with the dam.
As a key infrastructure owned by the local government, Walton Lake Dam serves as a crucial water supply source for the community. With its historical significance dating back over a century, the dam's role in water management and climate resilience underscores the importance of sustainable resource utilization and proactive risk management strategies in safeguarding water resources for future generations.
°F
°F
mph
Wind
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Humidity
15-Day Weather Outlook
Year Completed |
1900 |
Dam Length |
900 |
Dam Height |
35 |
River Or Stream |
TR-CROW CREEK |
Primary Dam Type |
Earth |
Surface Area |
75 |
Drainage Area |
4.22 |
Nid Storage |
2500 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
35 |
Seasonal Comparison
5-Day Hourly Forecast Detail
Nearby Streamflow Levels
Cedar Creek Near Oakland Mills
|
16cfs |
Des Moines River At Keosauqua
|
3710cfs |
Big Creek Near Mt. Pleasant
|
1cfs |
North Skunk River Near Sigourney
|
97cfs |
Des Moines River At Ottumwa
|
4610cfs |
Fox River At Bloomfield
|
7cfs |
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.
Walton Lake Dam