Rock City Saw Mill Dam
Rock City Saw Mill Dam is a concrete dam located in Dutchess County, New York, built in 1900. It carries a Significant hazard potential classification and has a poor condition assessment.
About Rock City Saw Mill Dam
The primary purpose of Rock City Saw Mill Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Edward Kovach (private). It impounds the Tr-lakes Kill near Rock City.
The dam stands 12 feet tall and stretches 86 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 11 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1900, 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 05/01/2024.
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Location
| State | New York |
| County | Dutchess |
| Nearest City | Rock City |
| River/Stream | Tr-lakes Kill |
| Coordinates | 41.97194, -73.81889 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 86 ft |
| Year Completed | 1900 (126 years old) |
Storage & Hydraulics
| NID Storage | 11 acre-ft |
| Max Storage | 11 acre-ft |
| Normal Storage | 4 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 135 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | EDWARD KOVACH |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 05/01/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | NY13439 |
| Federal ID | NY13439 |
| More Info | State Dam Safety Program |