Lake Suzanne Dam
Lake Suzanne Dam is an earth dam located in Rockland County, New York, built in 1986. It carries a Significant hazard potential classification and has a poor condition assessment.
About Lake Suzanne Dam
The primary purpose of Lake Suzanne Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Rockland County Highway Department;town Of Ramapo (local government). It impounds the Pascack Brook near Spring Valley.
The dam stands 19 feet tall and stretches 430 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 94 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1986, the structure is 40 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 05/27/2022.
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Location
| State | New York |
| County | Rockland |
| Nearest City | Spring Valley |
| River/Stream | Pascack Brook |
| Coordinates | 41.12222, -74.05778 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 430 ft |
| Year Completed | 1986 (40 years old) |
Storage & Hydraulics
| NID Storage | 94 acre-ft |
| Max Storage | 94 acre-ft |
| Normal Storage | 43 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | ROCKLAND COUNTY HIGHWAY DEPARTMENT;TOWN OF RAMAPO |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 05/27/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY00760 |
| Federal ID | NY00760 |
| More Info | State Dam Safety Program |