Lake La Su An Dam

TRIBUTARY TO WEST BRANCH ST. JOSEPH RIVER· Williams, Ohio· Built 1959· Earth· 19 ft tall
Significant Hazard Recreation State Government

Key Takeaway

Lake La Su An Dam is classified as significant hazard in Ohio. It was completed in 1959 and is 67 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 19 ft (taller than 24.6% in OH)
Dam Length600 ft
Dam TypeEarth
Max Storage750 acre-ft
Normal Storage555 acre-ft
Surface Area69 acres
Drainage Area1 sq mi
Max Discharge317 cfs
Year Completed1959 (67 years old)
NID IDOH00381

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: June 12, 2018
State Regulated: Yes
Regulatory Agency: Department of Natural Resources

Ownership

ODNR, Division of Wildlife

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lake La Su An Dam?

Lake La Su An Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Lake La Su An Dam?

Lake La Su An Dam is owned by ODNR, Division of Wildlife (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lake La Su An Dam built?

Lake La Su An Dam was completed in 1959, making it 67 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 Lake La Su An Dam?

Lake La Su An 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 Lake La Su An Dam?

Lake La Su An Dam has a dam height of 19 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 Lake La Su An Dam last inspected?

Lake La Su An Dam was last inspected on June 12, 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.