Henry Dam #1
Key Takeaway
Henry Dam #1 is classified as low hazard in Montana. It was completed in 1948 and is 78 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 12 ft (taller than 9.2% in MT) |
| Dam Length | 200 ft |
| Dam Type | Earth |
| Max Storage | 373 acre-ft |
| Normal Storage | 157 acre-ft |
| Year Completed | 1948 (78 years old) |
| NID ID | MT00414 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
HARROLD E HENRY
Private
Nearby Dams
Capacity
Toole, MT
Low Hazard 14 ftHofer 1
Liberty, MT
Low Hazard 22 ftHofer 2
Toole, MT
Low Hazard 22 ftSwamp Cooler
Toole, MT
Low Hazard 8 ftTriple L and Er Fritz
Liberty, MT
Low Hazard 15 ftChicago Lake
Liberty, MT
Low Hazard 15 ftMorris #2 (Toole)
Toole, MT
Low Hazard 20 ftMorris #1 (Toole)
Toole, MT
Low Hazard 37 ftFrequently Asked Questions
What is the hazard classification of Henry Dam #1?
Henry Dam #1 is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Henry Dam #1?
Henry Dam #1 is owned by HARROLD E HENRY (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Henry Dam #1 built?
Henry Dam #1 was completed in 1948, making it 78 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 Henry Dam #1?
Henry Dam #1 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Henry Dam #1?
Henry Dam #1 has a dam height of 12 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.