Blackhawk Lake
Low HazardFair ConditionEmergency Action Plan: Yes
Location
| State | Wisconsin |
| County | Iowa |
| Nearest City | NONE |
| River/Stream | OTTER CREEK & CAVE HOLLOW BR |
| Coordinates | 43.02637, -90.27960 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 50 ft |
| Dam Height | 50 ft |
| Dam Length | 1,130 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 7,900 acre-ft |
| Max Storage | 7,900 acre-ft |
| Normal Storage | 3,810 acre-ft |
| Surface Area | 220 acres |
| Drainage Area | 16 sq mi |
| Max Discharge | 460 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Iowa County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 06/02/2015 |
| Emergency Action Plan | Yes |