Baldwin Dam Reservoir Report
Nearby: Iowa Noname35 Banks Dam
Last Updated: January 10, 2026
Baldwin Dam, located in Sioux City, Iowa, is a privately owned structure designed by the NRCS and regulated by the Iowa DNR.
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Summary
Completed in 1998, this earth dam stands at a height of 28 feet and spans a length of 793 feet, with a primary purpose of providing fire protection, stock, or serving as a small fish pond. The dam has a low hazard potential and a moderate risk assessment, making it crucial for climate and water resource enthusiasts to monitor its condition and management measures.
With a normal storage capacity of 44 acre-feet and a maximum storage of 82 acre-feet, Baldwin Dam plays a key role in managing the flow of TR-Perry Creek. Despite being uncontrolled, the spillway type of this dam ensures the safety of the surrounding areas in case of overflow. While the structure has not been rated for its condition assessment, its risk management measures and risk assessment are deemed moderate, highlighting the importance of ongoing monitoring and maintenance efforts for sustainability in the face of changing climate patterns.
As a crucial element in the local water resource management system, Baldwin Dam serves as a vital infrastructure for the community in Plymouth County, Iowa. Its strategic location and purpose make it a significant asset for fire protection, livestock, and ecological needs. By staying informed about its condition, risk assessment, and management measures, water resource and climate enthusiasts can contribute to the sustainable utilization of this essential structure for years to come.
Year Completed |
1998 |
Dam Length |
793 |
Dam Height |
28 |
River Or Stream |
TR-PERRY CREEK |
Primary Dam Type |
Earth |
Surface Area |
7.7 |
Drainage Area |
0.19 |
Nid Storage |
82 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Perry Creek Near Milnerville
|
25cfs |
Floyd River At James
|
187cfs |
Big Sioux River At Akron
|
816cfs |
Missouri River At Sioux City
|
13200cfs |
Floyd River At Alton
|
36cfs |
Omaha Cr At Homer
|
45cfs |
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.
Baldwin Dam