Rutland Milldam Reservoir Report
Nearby: Humboldt Milldam Christensen Dam
Last Updated: December 13, 2025
Rutland Milldam, located in Humboldt, Iowa, serves as a vital water resource and recreation site along the West Fork Des Moines River.
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Summary
Built in 1922, this gravity dam stands at a height of 12 feet and spans 294 feet in length, providing a storage capacity of 1,026 acre-feet. While primarily used for recreation, the dam is also regulated by the Iowa Department of Natural Resources, ensuring its safety and compliance with state guidelines.
Despite its low hazard potential, Rutland Milldam has been identified with a moderate risk assessment, indicating the need for ongoing monitoring and management measures. Although the dam's condition has not been officially rated, regular inspections are conducted to assess its structural integrity and safety. With its scenic surroundings and historical significance, Rutland Milldam remains a popular destination for water resource and climate enthusiasts seeking to explore the beautiful landscape of Humboldt County.
As part of the Rock Island District, Rutland Milldam plays a crucial role in managing water flow and providing recreational opportunities for visitors. While the dam's emergency action plan and risk management measures may need further development, its importance as a water resource and recreational asset in Iowa cannot be understated. For those passionate about water resources and climate conservation, Rutland Milldam offers a fascinating glimpse into the intersection of human engineering and natural beauty.
Year Completed |
1922 |
Dam Length |
294 |
Dam Height |
12 |
River Or Stream |
WEST FORK DES MOINES RIVER |
Primary Dam Type |
Gravity |
Surface Area |
170 |
Drainage Area |
2233 |
Nid Storage |
1026 |
Hazard Potential |
Low |
Foundations |
Rock, Soil |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Des Moines River At Humboldt
|
401cfs |
East Fork Des Moines River At Dakota City
|
255cfs |
Des Moines River At Fort Dodge
|
1320cfs |
Boone River Near Webster City
|
232cfs |
Iowa River Near Rowan
|
195cfs |
Des Moines River Near Stratford
|
1720cfs |
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.
Rutland Milldam