Big Wyacondah Watershed Site 27-A-3 Reservoir Report
Last Updated: December 6, 2025
Big Wyacondah Watershed Site 27-A-3, located in Davis County, Iowa, is a key water resource project designed by the USDA NRCS with a primary purpose of fire protection, stock, or small fish pond management, as well as flood risk reduction.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1971, this earth dam stands at a height of 27 feet and spans 466 feet in length, with a storage capacity of 70 acre-feet and a surface area of 6 acres. Situated along the TR-South Wyacondah River, this site plays a crucial role in water management and conservation efforts in the region.
Managed by the local government and regulated by the Iowa DNR, Big Wyacondah Watershed Site 27-A-3 is deemed to have low hazard potential with a moderate risk assessment score of 3. While the dam's condition is currently rated as "Not Rated," it undergoes state inspections and enforcement to ensure its structural integrity and safety standards are maintained. With a drainage area of 0.29 square miles, this site serves as a vital component in the overall water infrastructure, contributing to flood control measures and supporting the local ecosystem.
As part of the Kansas City District, the dam at Big Wyacondah Watershed Site 27-A-3 exemplifies the collaborative efforts between federal agencies, local governments, and conservation organizations in safeguarding water resources and mitigating environmental risks. With its strategic location in the heart of Davis County, Iowa, this site stands as a testament to sustainable water management practices and the importance of maintaining critical infrastructure for the benefit of both the community and the surrounding natural environment.
Year Completed |
1971 |
Dam Length |
466 |
Dam Height |
27 |
River Or Stream |
TR-SOUTH WYACONDAH RIVER |
Primary Dam Type |
Earth |
Surface Area |
6 |
Drainage Area |
0.29 |
Nid Storage |
70 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Fox River At Bloomfield
|
7cfs |
Chariton River Near Moulton
|
34cfs |
Chariton River At Livonia
|
45cfs |
Des Moines River At Ottumwa
|
1090cfs |
Des Moines River At Keosauqua
|
1800cfs |
Chariton River Near Rathbun
|
14cfs |
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 |
|---|---|---|
McGowen Rec Area
|
||
Lake Fisher
|
||
Drakesville City Park
|
Big Wyacondah Watershed Site 27-A-3