Blue Heron Lake Dam
Blue Heron Lake Dam is a concrete dam located in Westchester County, New York, built in 1936. It carries a Significant hazard potential classification and has a poor condition assessment.
About Blue Heron Lake Dam
The primary purpose of Blue Heron Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Sheldon And Marilyn Fireman (private). It impounds the Tr-cross River Reservoir.
The dam stands 15 feet tall and stretches 140 feet across, creates a reservoir covering 45 acres, has a maximum storage capacity of 224 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1936, the structure is well-established, with more than 75 years of service.
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 02/05/2025.
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Location
| State | New York |
| County | Westchester |
| Nearest City | None |
| River/Stream | Tr-cross River Reservoir |
| Coordinates | 41.19806, -73.59472 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 140 ft |
| Year Completed | 1936 (90 years old) |
Storage & Hydraulics
| NID Storage | 224 acre-ft |
| Max Storage | 224 acre-ft |
| Normal Storage | 210 acre-ft |
| Surface Area | 45 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 100 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | SHELDON AND MARILYN FIREMAN |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 02/05/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY01506 |
| Federal ID | NY01506 |
| More Info | State Dam Safety Program |