Heisler Subwatershed Site 2-1
Heisler Subwatershed Site 2-1 is an earth dam located in Woodbury County, Iowa, built in 2004. It carries a Low hazard potential classification.
About Heisler Subwatershed Site 2-1
The primary purpose of Heisler Subwatershed Site 2-1 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Woodbury County Swcd (local government). It impounds the Tr- West Fork Litle Sioux River near Missouri River.
The dam stands 40 feet tall and stretches 715 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 210 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2004, the structure is relatively new.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
At 40 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | Iowa |
| County | Woodbury |
| Nearest City | Missouri River |
| River/Stream | Tr- West Fork Litle Sioux River |
| Coordinates | 42.36360, -96.17110 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 715 ft |
| Year Completed | 2004 (22 years old) |
Storage & Hydraulics
| NID Storage | 210 acre-ft |
| Max Storage | 210 acre-ft |
| Normal Storage | 88 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Woodbury County SWCD |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA03896 |
| Federal ID | IA03896 |
| More Info | State Dam Safety Program |