Alder Lake Dam
Alder Lake Dam is a concrete dam located in Ulster County, New York, built in 1994. It carries a Low hazard potential classification.
About Alder Lake Dam
The primary purpose of Alder Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Nys Dec Division Of Fish And Wildlife (state). It impounds the Alder Creek near Turnwood.
The dam stands 18 feet tall and stretches 300 feet across, creates a reservoir covering 44 acres, has a maximum storage capacity of 480 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1994, the structure is 32 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 08/28/2012. That was over 13 years ago.
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Location
| State | New York |
| County | Ulster |
| Nearest City | Turnwood |
| River/Stream | Alder Creek |
| Coordinates | 42.04917, -74.68083 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 300 ft |
| Year Completed | 1994 (32 years old) |
Storage & Hydraulics
| NID Storage | 480 acre-ft |
| Max Storage | 480 acre-ft |
| Normal Storage | 397 acre-ft |
| Surface Area | 44 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 400 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | NYS DEC DIVISION OF FISH AND WILDLIFE |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 08/28/2012 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NY01222 |
| Federal ID | NY01222 |
| More Info | State Dam Safety Program |