Arnold-Armstrong Subwtrshd Site 3a-3050, located in Monona, Iowa, is a low-hazard earth dam completed in 1963 for fire protection, stock, and small fish pond purposes.
Managed by the local government and designed by USDA NRCS, this dam on TR-Dutch Creek has a height of 34 feet and a length of 170 feet, with a storage capacity of 17 acre-feet. The dam is state-regulated and inspected by the Iowa DNR, ensuring its safety and compliance with regulations.
With a drainage area of 0.21 square miles, the Arnold-Armstrong Subwtrshd Site 3a-3050 poses a low hazard potential and has a moderate risk assessment. The dam's condition is currently not rated, and there are no emergency action plans in place. Despite its small surface area of 1 acre, the dam plays a crucial role in flood risk reduction for the surrounding area. Overall, this site serves as a vital infrastructure for water resource management and climate resilience in the region, contributing to the protection of local ecosystems and communities.
Wind
Humidity
Year Completed |
1963 |
Dam Length |
170 |
Dam Height |
34 |
River Or Stream |
TR- DUTCH CREEK |
Primary Dam Type |
Earth |
Surface Area |
1 |
Drainage Area |
0.21 |
Nid Storage |
17 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
34 |
Maple River At Mapleton
|
283cfs |
West Fork Ditch At Hornick
|
80cfs |
Little Sioux River Near Turin
|
1250cfs |
Monona-Harrison Ditch Near Turin
|
183cfs |
Missouri River At Decatur
|
26700cfs |
Soldier River At Pisgah
|
156cfs |