Soap Creek Watershed Site 4-90a is an earth dam located in Appanoose County, Iowa, built in 2011. It carries a Low hazard potential classification.
Dam profile
NID height · 36 ft36 ft tall and 420 ft long, taller than 82% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Soap Creek Watershed Site 4-90a
The primary purpose of Soap Creek Watershed Site 4-90a 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 Soap Creek Watershed Board (local government). It impounds the Tr to Soap Creek near Selma.
The dam stands 36 feet tall and stretches 420 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 145 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2011, 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 36 feet, this dam is taller than 82% of dams nationwide.
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Location
| State | Iowa |
| County | Appanoose |
| Nearest City | Selma |
| River/Stream | Tr to Soap Creek |
| Coordinates | 40.87440, -92.67490 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 420 ft |
| Year Completed | 2011 (15 years old) |
Storage & Hydraulics
| NID Storage | 145 acre-ft |
| Max Storage | 145 acre-ft |
| Normal Storage | 28 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 336 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Soap Creek Watershed Board |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04125 |
| Federal ID | IA04125 |
| More Info | State Dam Safety Program |