Independence Milldam
Independence Milldam is a gravity dam located in Buchanan County, Iowa, built in 1922. It carries a Low hazard potential classification.
About Independence Milldam
The primary purpose of Independence 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 Independence (local government). It impounds the Wapsipinicon River near Independence.
The dam stands 11 feet tall and stretches 341 feet across, creates a reservoir covering 440 acres, has a maximum storage capacity of 2,834 acre-feet, and collects water from a drainage area of 1,048 square miles. Completed in 1922, 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.
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Location
| State | Iowa |
| County | Buchanan |
| Nearest City | Independence |
| River/Stream | Wapsipinicon River |
| Coordinates | 42.47760, -91.90050 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 341 ft |
| Year Completed | 1922 (104 years old) |
Storage & Hydraulics
| NID Storage | 2,834 acre-ft |
| Max Storage | 2,834 acre-ft |
| Normal Storage | 2,398 acre-ft |
| Surface Area | 440 acres |
| Drainage Area | 1,048 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | City of Independence |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01300 |
| Federal ID | IA01300 |
| More Info | State Dam Safety Program |