Summary
Built in 1966, this earth dam stands at 40 feet tall and spans 318 feet in length, holding a storage capacity of 80 acre-feet. Situated on the TR-West Nodaway River, Williams Dam is regulated by the Iowa DNR and is subject to state permitting, inspection, and enforcement, ensuring its safety and compliance with regulations.
With a low hazard potential and a moderate risk assessment rating, Williams Dam poses minimal risk to surrounding areas. Despite being designated as "Not Rated" in terms of condition assessment, the dam continues to serve its primary purposes effectively. While the structure lacks certain features such as outlet gates and locks, it remains a vital resource for fire protection and water storage in the region. As water resource and climate enthusiasts, the data on Williams Dam serves as a reminder of the importance of maintaining and monitoring such infrastructure for the sustainability of our water supply and the protection of our communities.
Year Completed |
1966 |
Dam Length |
318 |
Dam Height |
40 |
River Or Stream |
TR-WEST NODAWAY RIVER |
Primary Dam Type |
Earth |
Surface Area |
2.5 |
Drainage Area |
0.27 |
Nid Storage |
80 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
40 |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Hacklebarney Woods County Park
|
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Viking Lake State Park
|
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Viking Lake State Park Campground
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Williams Dam