Jack Simpson

TR MIDDLE FORK· Monroe, Missouri· Built 1970· Earth· 20 ft tall
Low Hazard Recreation Private

Key Takeaway

Jack Simpson is classified as low hazard in Missouri. It was completed in 1970 and is 56 years old. Its primary use is recreation.

Physical Details

Dam Height 20 ft (taller than 7.1% in MO)
Dam TypeEarth
Max Storage54 acre-ft
Normal Storage30 acre-ft
Surface Area5 acres
Drainage Area46 sq mi
Year Completed1970 (56 years old)
NID IDMO10075

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: No

Ownership

UNKNOWN

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Jack Simpson?

Jack Simpson 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 Jack Simpson?

Jack Simpson is owned by UNKNOWN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Jack Simpson built?

Jack Simpson was completed in 1970, making it 56 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 Jack Simpson?

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

How tall is Jack Simpson?

Jack Simpson 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.