Halverson
Halverson is an earth dam located in Iowa County, Wisconsin. It carries a Low hazard potential classification and has a unsatisfactory condition assessment.
About Halverson
The primary purpose of Halverson is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Wisconsin Department Of Natural Resources (state). It impounds the Tr-twin Valley Lake near Cox Hollow Dam No. 2.
The dam stands 37 feet tall and stretches 450 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 125 acre-feet, and collects water from a drainage area of 0 square miles.
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 unsatisfactory, indicating serious safety deficiencies exist that require immediate attention or remedial action. The most recent inspection on record was 11/19/2013. That was over 12 years ago.
At 37 feet, this dam is taller than 84% of dams nationwide.
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Location
| State | Wisconsin |
| County | Iowa |
| Nearest City | Cox Hollow Dam No. 2 |
| River/Stream | Tr-twin Valley Lake |
| Coordinates | 43.04335, -90.09469 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 37 ft |
| Dam Height | 37 ft |
| Dam Length | 450 ft |
Storage & Hydraulics
| NID Storage | 125 acre-ft |
| Max Storage | 125 acre-ft |
| Normal Storage | 104 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 270 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Wisconsin Department of Natural Resources |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Unsatisfactory |
| Last Inspection | 11/19/2013 |
| Emergency Action Plan | No |
Identifiers
| NID ID | WI12278 |
| Federal ID | WI12278 |
| More Info | State Dam Safety Program |