Leffler Dam is an earth dam located in Wapello County, Iowa, built in 2017. It carries a Low hazard potential classification.
Dam profile
NID height · 32 ft32 ft tall and 400 ft long, taller than 74% 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 Leffler Dam
The primary purpose of Leffler Dam 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 Mike Leffler (private). It impounds the Little Soap Creek near Eldon.
The dam stands 32 feet tall and stretches 400 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 102 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2017, 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.
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Location
| State | Iowa |
| County | Wapello |
| Nearest City | Eldon |
| River/Stream | Little Soap Creek |
| Coordinates | 40.91170, -92.63020 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 29 ft |
| Dam Length | 400 ft |
| Year Completed | 2017 (9 years old) |
Storage & Hydraulics
| NID Storage | 102 acre-ft |
| Max Storage | 102 acre-ft |
| Normal Storage | 22 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 63 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Mike Leffler |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04262 |
| Federal ID | IA04262 |
| More Info | State Dam Safety Program |