Erickson Dam is an earth dam located in Harrison County, Iowa, built in 2003. It carries a Low hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall and 520 ft long, taller than 59% 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 Erickson Dam
The primary purpose of Erickson 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 Robert Erickson (private). It impounds the Tr-willow Creek.
The dam stands 27 feet tall and stretches 520 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 39 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2003, 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. The most recent inspection on record was 08/22/2004. That was over 22 years ago.
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Location
| State | Iowa |
| County | Harrison |
| River/Stream | Tr-willow Creek |
| Coordinates | 41.80560, -95.72720 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 520 ft |
| Year Completed | 2003 (23 years old) |
Storage & Hydraulics
| NID Storage | 39 acre-ft |
| Max Storage | 39 acre-ft |
| Normal Storage | 15 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Robert Erickson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/22/2004 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04043 |
| Federal ID | IA04043 |
| More Info | State Dam Safety Program |