Hawthorne Lake Dam
Significant HazardSatisfactory ConditionEmergency Action Plan: Not Required
Location
| State | Iowa |
| County | Mahaska |
| Nearest City | LACEY |
| River/Stream | PLEASANT CREEK |
| Coordinates | 41.47520, -92.45790 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 45 ft |
| Dam Height | 45 ft |
| Dam Length | 900 ft |
| Year Completed | 1979 (47 years old) |
Storage & Hydraulics
| NID Storage | 4,100 acre-ft |
| Max Storage | 4,100 acre-ft |
| Normal Storage | 1,890 acre-ft |
| Surface Area | 160 acres |
| Drainage Area | 5 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Iowa Department of Natural Resources |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/08/2022 |
| Emergency Action Plan | Not Required |