Grassy Sprain Reservoir Dam
High HazardSatisfactory ConditionEmergency Action Plan: Yes
Location
| County | Westchester |
| Nearest City | Yonkers |
| River/Stream | GRASSY SPRAIN BROOK |
| Coordinates | 40.96056, -73.85139 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 600 ft |
| Year Completed | 1876 (150 years old) |
Storage & Hydraulics
| NID Storage | 3,550 acre-ft |
| Max Storage | 3,550 acre-ft |
| Normal Storage | 2,960 acre-ft |
| Surface Area | 150 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,025 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | CITY OF YONKERS |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 01/12/2024 |
| Emergency Action Plan | Yes |