Twin Parks 10
Twin Parks 10 is an earth dam located in Iowa County, Wisconsin, built in 1966. It carries a Low hazard potential classification and has a fair condition assessment.
About Twin Parks 10
The primary purpose of Twin Parks 10 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 Iowa County (local government). It impounds the Tr Mill Creek.
The dam stands 32 feet tall and stretches 598 feet across, has a maximum storage capacity of 200 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1966, the structure is well into its service life at over 50 years 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 04/11/2014. That was over 11 years ago.
At 32 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Wisconsin |
| County | Iowa |
| Nearest City | None |
| River/Stream | Tr Mill Creek |
| Coordinates | 43.09403, -89.92069 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 598 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Max Storage | 200 acre-ft |
| Drainage Area | 2 sq mi |
| Max Discharge | 130 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Iowa County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 04/11/2014 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00363 |
| Federal ID | WI00363 |
| More Info | State Dam Safety Program |