Lotus Lake Dam
Lotus Lake Dam is an earth dam located in Suffolk County, New York, built in 1980. It carries a Significant hazard potential classification and has a poor condition assessment.
About Lotus Lake Dam
The primary purpose of Lotus Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Suffolk County Department Of Parks, Recreation & Convervation (local government). It impounds the Brown Creek near Bayport.
The dam stands 6 feet tall and stretches 540 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 27 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1980, the structure is 46 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. The most recent inspection on record was 12/12/2022.
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Location
| State | New York |
| County | Suffolk |
| Nearest City | Bayport |
| River/Stream | Brown Creek |
| Coordinates | 40.74389, -73.06750 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 6 ft |
| Dam Height | 6 ft |
| Dam Length | 540 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 27 acre-ft |
| Max Storage | 27 acre-ft |
| Normal Storage | 16 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 7 sq mi |
| Max Discharge | 40 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | SUFFOLK COUNTY DEPARTMENT OF PARKS, RECREATION & CONVERVATION |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 12/12/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NY14108 |
| Federal ID | NY14108 |
| More Info | State Dam Safety Program |