Greene Mill Dam
Low HazardSatisfactory ConditionEmergency Action Plan: Not Required
Location
| State | Iowa |
| County | Butler |
| Nearest City | Greene |
| River/Stream | Shell Rock |
| Coordinates | 42.89510, -92.80310 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 282 ft |
| Year Completed | 1925 (101 years old) |
Storage & Hydraulics
| NID Storage | 385 acre-ft |
| Normal Storage | 385 acre-ft |
| Surface Area | 85 acres |
| Drainage Area | 1,357 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Butler County, IA |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/08/2022 |
| Emergency Action Plan | Not Required |