Ripogenus
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| State | Maine |
| County | Piscataquis |
| Nearest City | Millinocket |
| River/Stream | West Branch Penobscot River |
| Coordinates | 45.88150, -69.17670 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 83 ft |
| Dam Height | 83 ft |
| Dam Length | 795 ft |
| Year Completed | 1916 (110 years old) |
Storage & Hydraulics
| NID Storage | 688,000 acre-ft |
| Max Storage | 688,000 acre-ft |
| Normal Storage | 688,000 acre-ft |
| Surface Area | 29,279 acres |
| Drainage Area | 1,422 sq mi |
| Max Discharge | 95,660 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner Type | Not Listed |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/11/2022 |
| Emergency Action Plan | Yes |