Shiawassee Flats Dam

Shiawassee River· Saginaw, Michigan· Built 1964· 12 ft tall
Low Hazard Recreation State Government

Key Takeaway

Shiawassee Flats Dam is classified as low hazard in Michigan. It was completed in 1964 and is 62 years old. Its primary use is recreation.

Physical Details

Dam Height 12 ft (taller than 32.7% in MI)
Dam Length15,000 ft
Max Storage9.1K acre-ft
Normal Storage2.5K acre-ft
Surface Area1,600 acres
Drainage Area626 sq mi
Max Discharge8,000 cfs
Year Completed1964 (62 years old)
NID IDMI01819

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 23, 2018
State Regulated: Yes
Regulatory Agency: MICHIGAN DEGLE

Ownership

MDNR Wildlife

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Shiawassee Flats Dam?

Shiawassee Flats 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 Shiawassee Flats Dam?

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

When was Shiawassee Flats Dam built?

Shiawassee Flats Dam was completed in 1964, making it 62 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 Shiawassee Flats Dam?

Shiawassee Flats 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 Shiawassee Flats Dam?

Shiawassee Flats Dam has a dam height of 12 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 Shiawassee Flats Dam last inspected?

Shiawassee Flats Dam was last inspected on May 23, 2018. 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.