Wood Lake Dam

WOOD CREEK· Lewis and Clark, Montana· Built 1955· Earth· 13 ft tall
Low Hazard Other Recreation Federal Government

Key Takeaway

Wood Lake Dam is classified as low hazard in Montana. It was completed in 1955 and is 71 years old. Its primary use is other.

Physical Details

Dam Height 13 ft (taller than 14.7% in MT)
Dam Length194 ft
Dam TypeEarth
Max Storage180 acre-ft
Normal Storage167 acre-ft
Surface Area19 acres
Drainage Area16 sq mi
Max Discharge800 cfs
Year Completed1955 (71 years old)
NID IDMT00895

Safety Information

Low Hazard

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?

Emergency Action Plan: No
Last Inspection: October 30, 2014
State Regulated: No

Ownership

USDA FS

Federal Government

Nearby Dams

J B Long and Company #2

Lewis and Clark, MT

Low Hazard 20 ft

Frequently Asked Questions

What is the hazard classification of Wood Lake Dam?

Wood Lake Dam 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 Wood Lake Dam?

Wood Lake Dam is owned by USDA FS (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Wood Lake Dam built?

Wood Lake Dam was completed in 1955, making it 71 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 Wood Lake Dam?

Wood Lake Dam serves the following purposes: Other, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Wood Lake Dam?

Wood Lake Dam has a dam height of 13 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 Wood Lake Dam last inspected?

Wood Lake Dam was last inspected on October 30, 2014. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.