Philadelphia - Nonoverflow Section
Significant HazardSatisfactory ConditionEmergency Action Plan: Not Required
Location
| State | New York |
| County | Jefferson |
| Nearest City | Philadelphia |
| River/Stream | Indian River |
| Coordinates | 44.15830, -75.70930 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 45 ft |
| Year Completed | 1910 (116 years old) |
Storage & Hydraulics
| NID Storage | 89 acre-ft |
| Max Storage | 89 acre-ft |
| Normal Storage | 89 acre-ft |
| Surface Area | 108 acres |
| Drainage Area | 229 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | FortisUS Energy Corporation |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/18/2025 |
| Emergency Action Plan | Not Required |