Peterson Dam #2 Reservoir Report
Nearby: Peterson Dam Crawford Dam
Last Updated: December 14, 2025
Peterson Dam #2, located in Winfield, Iowa, is a private earth dam completed in 2005 for grade stabilization purposes.
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Summary
The dam stands at a height of 27 feet and spans a length of 615 feet, with a storage capacity of 170 acre-feet. It is situated on a tributary to Phillips Creek in Henry County and is regulated by the Iowa Department of Natural Resources. The dam serves multiple purposes including fish and wildlife pond creation, grade stabilization, and recreation.
Despite being classified as low hazard potential and not yet rated for condition assessment, Peterson Dam #2 plays a crucial role in managing water resources in the area. With a drainage area of 0.63 square miles and a normal storage capacity of 45 acre-feet, the dam helps to control water flow and prevent erosion. While there are no outlet gates, the spillway width is 12 feet, allowing for controlled release of excess water during heavy rainfall events.
The dam, designed by USDA NRCS, is owned and maintained by a private entity, highlighting the collaborative efforts between public and private sectors in water resource management. With its strategic location and multiple benefits, Peterson Dam #2 stands as a vital infrastructure for enhancing environmental sustainability and promoting recreational activities in the region.
Year Completed |
2005 |
Dam Length |
615 |
Dam Height |
27 |
River Or Stream |
Trib to Phillips Creek |
Primary Dam Type |
Earth |
Surface Area |
10 |
Drainage Area |
0.63 |
Nid Storage |
170 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Big Creek Near Mt. Pleasant
|
0cfs |
Cedar Creek Near Oakland Mills
|
10cfs |
Iowa River At Wapello
|
2660cfs |
Iowa River Near Lone Tree
|
1830cfs |
Cedar River Near Conesville
|
1720cfs |
Skunk River At Augusta
|
145cfs |
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.
Peterson Dam #2