Soap Creek Watershed Site 4-98 is an earth dam located in Appanoose County, Iowa, built in 2005. It carries a Low hazard potential classification.
Dam profile
NID height · 33 ft33 ft tall and 635 ft long, taller than 76% 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 4-98
The primary purpose of Soap Creek Watershed Site 4-98 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 Morman Creek near Selma.
The dam stands 33 feet tall and stretches 635 feet across, creates a reservoir covering 24 acres, has a maximum storage capacity of 657 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 2005, 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 33 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Iowa |
| County | Appanoose |
| Nearest City | Selma |
| River/Stream | Morman Creek |
| Coordinates | 40.88970, -92.77890 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 33 ft |
| Dam Length | 635 ft |
| Year Completed | 2005 (21 years old) |
Storage & Hydraulics
| NID Storage | 657 acre-ft |
| Max Storage | 657 acre-ft |
| Normal Storage | 143 acre-ft |
| Surface Area | 24 acres |
| Drainage Area | 2 sq mi |
| Spillway Type | Uncontrolled |
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 | IA03963 |
| Federal ID | IA03963 |
| More Info | State Dam Safety Program |