Little John Flooding Dam

Tributary to Ryan Creek· Mecosta, Michigan· Built 1957· Earth· 20 ft tall
Low Hazard Recreation Other State Government

Key Takeaway

Little John Flooding Dam is classified as low hazard in Michigan. It was completed in 1957 and is 69 years old. Its primary use is recreation.

Physical Details

Dam Height 20 ft (taller than 70.3% in MI)
Dam Length160 ft
Dam TypeEarth
Max Storage1.2K acre-ft
Normal Storage250 acre-ft
Surface Area65 acres
Drainage Area2 sq mi
Max Discharge65 cfs
Year Completed1957 (69 years old)
NID IDMI00305

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: May 26, 2016
State Regulated: Yes
Regulatory Agency: MICHIGAN DEGLE

Ownership

MDNR Wildlife

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Little John Flooding Dam?

Little John Flooding 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 Little John Flooding Dam?

Little John Flooding Dam is owned by MDNR Wildlife (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Little John Flooding Dam built?

Little John Flooding Dam was completed in 1957, making it 69 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 Little John Flooding Dam?

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

How tall is Little John Flooding Dam?

Little John Flooding Dam 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.

When was Little John Flooding Dam last inspected?

Little John Flooding Dam was last inspected on May 26, 2016. 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.