Located in West Haverstraw, New York, the Garnerville Dam stands as a testament to engineering excellence, with a masonry structure completed in 1875.
Wind
Humidity
This dam serves as a vital resource for the community, regulating the flow of the MINISCEONGO CREEK and providing a storage capacity of 198 acre-feet. With a height of 29 feet and a length of 330 feet, the Garnerville Dam plays a crucial role in water resource management in Rockland County.
Managed by the local government and regulated by the New York State Department of Environmental Conservation, the Garnerville Dam is classified as a high hazard structure with a moderate risk assessment. Despite its age, the dam has not been rated for its condition, highlighting the need for ongoing maintenance and inspection. The spillway, with a width of 69 feet, is uncontrolled, adding to the complexity of managing water levels during periods of high discharge.
As water resource and climate enthusiasts, the Garnerville Dam serves as a fascinating case study in historic dam construction and the ongoing challenges of maintaining aging infrastructure. Its role in flood control and water storage underscores the importance of proactive risk management and emergency preparedness. With its rich history and vital function, the Garnerville Dam remains a cornerstone of water resource management in Rockland, New York, deserving of continued attention and investment to ensure its safe and effective operation for years to come.
Year Completed |
1875 |
Dam Length |
330 |
Dam Height |
29 |
River Or Stream |
MINISCEONGO CREEK |
Primary Dam Type |
Masonry |
Surface Area |
10 |
Drainage Area |
17.5 |
Nid Storage |
198 |
Hazard Potential |
High |
Nid Height |
29 |