Holliday -Flagstaff Lake-
Key Takeaway
Holliday -Flagstaff Lake- is classified as low hazard in Montana. It was completed in 1939 and is 87 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 38 ft (taller than 94.3% in MT) |
| Dam Length | 800 ft |
| Dam Type | Earth |
| Max Storage | 250 acre-ft |
| Normal Storage | 250 acre-ft |
| Drainage Area | 9 sq mi |
| Year Completed | 1939 (87 years old) |
| NID ID | MT00049 |
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
JOHN B. GOODRICH
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Holliday -Flagstaff Lake-?
Holliday -Flagstaff Lake- 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 Holliday -Flagstaff Lake-?
Holliday -Flagstaff Lake- is owned by JOHN B. GOODRICH (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Holliday -Flagstaff Lake- built?
Holliday -Flagstaff Lake- was completed in 1939, making it 87 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 Holliday -Flagstaff Lake-?
Holliday -Flagstaff Lake- serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Holliday -Flagstaff Lake-?
Holliday -Flagstaff Lake- has a dam height of 38 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.