Darien Lake State Park Dam
Darien Lake State Park Dam is an earth dam located in Genesee County, New York, built in 1958. It carries a Significant hazard potential classification.
About Darien Lake State Park Dam
The primary purpose of Darien Lake State Park Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Nys Parks & Recreation Genesee State Park Region (state). It impounds the Tr-eleven Mile Creek near Alden.
The dam stands 12 feet tall and stretches 900 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 81 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1958, the structure is well into its service life at over 50 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. The most recent inspection on record was 05/12/2022.
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Location
| State | New York |
| County | Genesee |
| Nearest City | Alden |
| River/Stream | Tr-eleven Mile Creek |
| Coordinates | 42.90500, -78.43194 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 900 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 81 acre-ft |
| Max Storage | 81 acre-ft |
| Normal Storage | 81 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 75 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | NYS PARKS & RECREATION GENESEE STATE PARK REGION |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Last Inspection | 05/12/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NY00875 |
| Federal ID | NY00875 |
| More Info | State Dam Safety Program |