Charles City Milldam is a gravity dam located in Floyd County, Iowa, built in 1945. It carries a Low hazard potential classification.
Dam profile
NID height · 10 ft10 ft tall and 236 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 Charles City Milldam
The primary purpose of Charles City 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 Charles City (local government). It impounds the Cedar River near Charles City.
The dam stands 10 feet tall and stretches 236 feet across, creates a reservoir covering 120 acres, has a maximum storage capacity of 606 acre-feet, and collects water from a drainage area of 1,054 square miles. Completed in 1945, the structure is well-established, with more than 75 years of service.
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 06/03/1999. That was over 27 years ago.
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Location
| State | Iowa |
| County | Floyd |
| Nearest City | Charles City |
| River/Stream | Cedar River |
| Coordinates | 43.06630, -92.68020 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 236 ft |
| Year Completed | 1945 (81 years old) |
Storage & Hydraulics
| NID Storage | 606 acre-ft |
| Max Storage | 606 acre-ft |
| Normal Storage | 606 acre-ft |
| Surface Area | 120 acres |
| Drainage Area | 1,054 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | City of Charles City |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 06/03/1999 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01272 |
| Federal ID | IA01272 |
| More Info | State Dam Safety Program |