Lyon Lodge Dam
Lyon Lodge Dam is an earth dam located in Ulster County, New York, built in 1925. It carries a Significant hazard potential classification and has a poor condition assessment.
About Lyon Lodge Dam
The primary purpose of Lyon Lodge Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Lyon's Lake Llc (private). It impounds the Lyon Creek near Wawarsing.
The dam stands 12 feet tall and stretches 210 feet across, creates a reservoir covering 32 acres, has a maximum storage capacity of 224 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1925, the structure is over a century 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 06/21/2023.
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Location
| State | New York |
| County | Ulster |
| Nearest City | Wawarsing |
| River/Stream | Lyon Creek |
| Coordinates | 41.77833, -74.36500 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 210 ft |
| Year Completed | 1925 (101 years old) |
Storage & Hydraulics
| NID Storage | 224 acre-ft |
| Max Storage | 224 acre-ft |
| Normal Storage | 176 acre-ft |
| Surface Area | 32 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 470 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Lyon's Lake LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 06/21/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NY00844 |
| Federal ID | NY00844 |
| More Info | State Dam Safety Program |