Fraser Milldam is a gravity dam located in Boone County, Iowa, built in 1911. It carries a Low hazard potential classification.
Dam profile
NID height · 7 ft7 ft tall and 475 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Fraser Milldam
The primary purpose of Fraser Milldam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City of Fraser (local government). It impounds the Des Moines River near Fraser.
The dam stands 7 feet tall and stretches 475 feet across, creates a reservoir covering 100 acres, has a maximum storage capacity of 345 acre-feet, and collects water from a drainage area of 4,905 square miles. Completed in 1911, the structure is over a century old.
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 10/11/1989. That was over 37 years ago.
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Location
| State | Iowa |
| County | Boone |
| Nearest City | Fraser |
| River/Stream | Des Moines River |
| Coordinates | 42.12590, -93.97650 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 7 ft |
| Dam Height | 7 ft |
| Dam Length | 475 ft |
| Year Completed | 1911 (115 years old) |
Storage & Hydraulics
| NID Storage | 345 acre-ft |
| Max Storage | 345 acre-ft |
| Normal Storage | 345 acre-ft |
| Surface Area | 100 acres |
| Drainage Area | 4,905 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | City of Fraser |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/11/1989 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01292 |
| Federal ID | IA01292 |
| More Info | State Dam Safety Program |