Newtown Hoffman Site 18 Dam
Key Takeaway
Newtown Hoffman Site 18 Dam is classified as high hazard in New York. It was completed in 1978 and is 48 years old. Its primary use is flood risk reduction. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 71 ft (taller than 96.4% in NY) |
| Dam Length | 780 ft |
| Dam Type | Earth |
| Max Storage | 750 acre-ft |
| Normal Storage | 137 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 18,130 cfs |
| Year Completed | 1978 (48 years old) |
| NID ID | NY00700 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
CHEMUNG COUNTY SOIL & WATER
Local Government
Nearby Dams
Hoffman Creek Dam
Chemung, NY
High Hazard 36 ftElmira Reformatory Dam
Chemung, NY
Significant Hazard 28 ftUpper Larchmont Road Dam
Chemung, NY
High Hazard 25 ftBeecher Creek Flood Control Dam
Chemung, NY
High Hazard 63 ftHigh Mountain Retention Basin Dam
Chemung, NY
Low Hazard 10 ftNewtown Hoffman Site 12e Dam
Chemung, NY
High Hazard 71 ftCiccotti
Bradford, PA
Significant Hazard 12 ftLesky Road Flood Control Dam
Chemung, NY
Low Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Newtown Hoffman Site 18 Dam?
Newtown Hoffman Site 18 Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Newtown Hoffman Site 18 Dam?
Newtown Hoffman Site 18 Dam is owned by CHEMUNG COUNTY SOIL & WATER (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Newtown Hoffman Site 18 Dam built?
Newtown Hoffman Site 18 Dam was completed in 1978, making it 48 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Newtown Hoffman Site 18 Dam?
Newtown Hoffman Site 18 Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Newtown Hoffman Site 18 Dam?
Newtown Hoffman Site 18 Dam has a dam height of 71 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Newtown Hoffman Site 18 Dam last inspected?
Newtown Hoffman Site 18 Dam was last inspected on October 8, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.