Big Wyacondah Watershed Site 27-J Reservoir Report
Last Updated: December 5, 2025
Big Wyacondah Watershed Site 27-J in Davis, Iowa, is a captivating site managed by local government with a primary purpose of fire protection, stock, or small fish pond.
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Summary
This Earth-type dam, completed in 1966, stands at a height of 16 feet and spans 458 feet in length, providing a storage capacity of 70 acre-feet and covering a surface area of 5 acres. Located along the TR-South Wyacondah River, this dam plays a crucial role in flood risk reduction for the surrounding area.
Managed by the USDA NRCS, this watershed site is regulated by the Iowa DNR and undergoes state permitting, inspection, and enforcement to ensure its safety and functionality. With a low hazard potential and a moderate risk assessment rating, the site has not been rated for its condition assessment but meets guidelines for emergency action plans. While it currently does not have an inundation map prepared, the site's risk management measures are under evaluation, emphasizing the importance of its role in water resource management and climate resilience in the region.
Overall, Big Wyacondah Watershed Site 27-J serves as a vital infrastructure for water management and environmental protection in the area. With its strategic location and purpose, this site illustrates the intersection of water resource management, climate adaptation, and community resilience, highlighting the importance of sustainable infrastructure for a changing climate. As enthusiasts of water resources and climate action, exploring the significance of this watershed site can provide valuable insights into the interconnectedness of water, land, and community well-being.
Year Completed |
1966 |
Dam Length |
458 |
Dam Height |
16 |
River Or Stream |
TR-SOUTH WYACONDAH RIVER |
Primary Dam Type |
Earth |
Surface Area |
5 |
Drainage Area |
0.14 |
Nid Storage |
70 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
16 |
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 |
Chariton River Near Rathbun
|
14cfs |
Des Moines River At Keosauqua
|
1800cfs |
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 |
|---|---|---|
Lake Fisher
|
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McGowen Rec Area
|
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Drakesville City Park
|
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Lake Wapello State Park
|
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Lake Wapello State Park Campground
|
Big Wyacondah Watershed Site 27-J