Thunder Bay Lake Dam
Significant HazardSatisfactory ConditionEmergency Action Plan: Not Required
Location
| State | Iowa |
| County | Polk |
| Nearest City | Altoona |
| River/Stream | TR-Four Mike Creek |
| Coordinates | 41.65390, -93.51680 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Year Completed | 2010 (16 years old) |
Storage & Hydraulics
| NID Storage | 119 acre-ft |
| Max Storage | 119 acre-ft |
| Normal Storage | 60 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,835 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Prairie Crossing Investments Inc |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/18/2023 |
| Emergency Action Plan | Not Required |