Tanglewood Lake Dam
Tanglewood Lake Dam is an earth dam located in Delaware County, New York, built in 1980. It carries a Significant hazard potential classification and has a poor condition assessment.
About Tanglewood Lake Dam
The primary purpose of Tanglewood Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Tanglewood Lake Association (private). It impounds the Bullet Hole Brook near Delancey.
The dam stands 14 feet tall and stretches 110 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 50 acre-feet, and collects water from a drainage area of 2 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. An emergency action plan is in place for this dam. The most recent inspection on record was 01/02/2024.
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Location
| State | New York |
| County | Delaware |
| Nearest City | Delancey |
| River/Stream | Bullet Hole Brook |
| Coordinates | 42.23000, -74.87333 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 110 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 50 acre-ft |
| Max Storage | 50 acre-ft |
| Normal Storage | 24 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 2 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | TANGLEWOOD LAKE ASSOCIATION |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 01/02/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | NY12584 |
| Federal ID | NY12584 |
| More Info | State Dam Safety Program |