County Line Flooding Dam

Tributary to Flat River· Montcalm, Michigan· Built 1968· Earth· 11 ft tall
Low Hazard Recreation State Government

Key Takeaway

County Line Flooding Dam is classified as low hazard in Michigan. It was completed in 1968 and is 58 years old. Its primary use is recreation.

Physical Details

Dam Height 11 ft (taller than 26.9% in MI)
Dam Length230 ft
Dam TypeEarth
Max Storage220 acre-ft
Normal Storage65 acre-ft
Surface Area29 acres
Drainage Area1 sq mi
Max Discharge146 cfs
Year Completed1968 (58 years old)
NID IDMI02479

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 20, 2016
State Regulated: Yes
Regulatory Agency: MICHIGAN DEGLE

Ownership

MDNR Wildlife

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of County Line Flooding Dam?

County Line 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 County Line Flooding Dam?

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

When was County Line Flooding Dam built?

County Line Flooding Dam was completed in 1968, making it 58 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 County Line Flooding Dam?

County Line Flooding 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 County Line Flooding Dam?

County Line Flooding Dam has a dam height of 11 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 County Line Flooding Dam last inspected?

County Line Flooding Dam was last inspected on May 20, 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.