Pierce Creek No 1 Watershed Site 1, located in Shenandoah, Iowa, is a local government-owned earth dam completed in 1965 by the USDA NRCS.
Wind
Humidity
With a height of 39 feet and a length of 697 feet, the dam serves multiple purposes including fire protection, stock, small fish pond, and flood risk reduction. The dam has a storage capacity of 162 acre-feet and a surface area of 7.9 acres, with a drainage area of 0.89 square miles and a spillway type of uncontrolled.
The dam, situated on the TR-East Nishnabotna River, is regulated by the Iowa DNR and is under state jurisdiction for permitting, inspection, and enforcement. Despite its low hazard potential, the dam's risk assessment is rated as moderate (3). With no recent condition assessment, emergency action plan, or inundation maps prepared, there is room for improvement in assessing and managing risks associated with the dam. Overall, Pierce Creek No 1 Watershed Site 1 presents an intriguing case study for water resource and climate enthusiasts interested in the management and regulation of small dams for various purposes.
Year Completed |
1965 |
Dam Length |
697 |
Dam Height |
39 |
River Or Stream |
TR-EAST NISHNABOTNA RIVER |
Primary Dam Type |
Earth |
Surface Area |
7.9 |
Drainage Area |
0.89 |
Nid Storage |
162 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
39 |
East Nishnabotna River At Red Oak
|
270cfs |
West Nishnabotna River At Randolph
|
420cfs |
Nodaway River At Clarinda
|
30cfs |
Nishnabotna River Above Hamburg
|
605cfs |
Missouri River At Nebraska City
|
25100cfs |
Weeping Water Creek At Union
|
20cfs |
| Location | Reservations | Toilets |
|---|---|---|
Pierce Creek Rec Area
|
||
Pioneer County Park Campgrounds
|
||
Pioneer City Park
|
||
Legion City Park
|