Wilson #1 (Toole)

TR-MARIAS· Toole, Montana· Built 1935· Earth· 20 ft tall
Low Hazard Water Supply Private

Key Takeaway

Wilson #1 (Toole) is classified as low hazard in Montana. It was completed in 1935 and is 91 years old. Its primary use is water supply.

Physical Details

Dam Height 20 ft (taller than 44.5% in MT)
Dam Length280 ft
Dam TypeEarth
Max Storage62 acre-ft
Normal Storage32 acre-ft
Year Completed1935 (91 years old)
NID IDMT00387

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
State Regulated: Yes
Regulatory Agency: DNRC

Ownership

BLANCHE T WILSON

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Wilson #1 (Toole)?

Wilson #1 (Toole) 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 Wilson #1 (Toole)?

Wilson #1 (Toole) is owned by BLANCHE T WILSON (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Wilson #1 (Toole) built?

Wilson #1 (Toole) was completed in 1935, making it 91 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 Wilson #1 (Toole)?

Wilson #1 (Toole) serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Wilson #1 (Toole)?

Wilson #1 (Toole) has a dam height of 20 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.

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.