Big Wyacondah Watershed Site 21b-1 in Davis, Iowa, is a crucial water resource managed by the local government and regulated by the Iowa Department of Natural Resources.
Wind
Humidity
Constructed in 1976 by the USDA NRCS, this earth dam serves multiple purposes including fire protection, stock maintenance, and small fish pond creation. With a dam height of 27 feet and a storage capacity of 86 acre-feet, the site covers a surface area of 6.4 acres and has a drainage area of 0.24 square miles.
Despite being classified as having a low hazard potential, Big Wyacondah Watershed Site 21b-1 is considered to have a moderate risk level based on a rating of 3. While its condition assessment is currently listed as "Not Rated," the dam is regularly inspected and meets state regulations for permitting, inspection, and enforcement. Situated along the TR-SOUTH WYACONDAH river or stream, this site plays a significant role in flood risk reduction for the surrounding area. With its strategic location in the Kansas City District and support from the Natural Resources Conservation Service, the dam continues to contribute to the region's water resource management and climate resilience efforts.
Year Completed |
1976 |
Dam Length |
450 |
Dam Height |
27 |
River Or Stream |
TR-SOUTH WYACONDAH |
Primary Dam Type |
Earth |
Surface Area |
6.4 |
Drainage Area |
0.24 |
Nid Storage |
86 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Fox River At Bloomfield
|
7cfs |
Chariton River At Livonia
|
45cfs |
Chariton River Near Moulton
|
34cfs |
Des Moines River At Keosauqua
|
1800cfs |
Des Moines River At Ottumwa
|
1090cfs |
Chariton River Near Rathbun
|
14cfs |
| Location | Reservations | Toilets |
|---|---|---|
McGowen Rec Area
|
||
Lake Fisher
|
||
Drakesville City Park
|