Blackhawk Lake
Wisconsin — Iowa County — OTTER CREEK & CAVE HOLLOW BR
Location
| State | Wisconsin |
| County | Iowa |
| River | OTTER CREEK & CAVE HOLLOW BR |
| Coordinates | 43.02637, -90.27960 |
Physical Characteristics
| NID Height | 50 ft |
| Dam Height | 50 ft |
| Dam Length | 1,130 ft |
| NID Storage | 7,900 acre-ft |
| Max Storage | 7,900 acre-ft |
| Surface Area | 220 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Fair |
| EAP Status | Yes |
| Last Inspection | June 2, 2015 |
| Inspection Frequency | 10 |
Dam Information
| Year Completed | 1969 |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | Local Government |
| Owner | Iowa County |
| Other Name | Otter Creek 9left & 9right |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.