O'Connell Dam

TR MARMATON RIVER· Vernon, Missouri· Built 1932· Earth· 15 ft tall
Low Hazard Recreation Private

Key Takeaway

O'Connell Dam is classified as low hazard in Missouri. It was completed in 1932 and is 94 years old. Its primary use is recreation.

Physical Details

Dam Height 15 ft (taller than 1.7% in MO)
Dam TypeEarth
Max Storage56 acre-ft
Normal Storage35 acre-ft
Surface Area7 acres
Drainage Area240 sq mi
Year Completed1932 (94 years old)
NID IDMO20189

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 O'Connell Dam?

O'Connell 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 O'Connell Dam?

O'Connell Dam is owned by UNKNOWN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was O'Connell Dam built?

O'Connell Dam was completed in 1932, making it 94 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 O'Connell Dam?

O'Connell Dam 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 O'Connell Dam?

O'Connell Dam has a dam height of 15 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.