Hamilton Lime Sludge Lagoon

GREAT MAIMI· Butler, Ohio· Built 1992· Earth· 11 ft tall
Significant Hazard Tailings Local Government

Key Takeaway

Hamilton Lime Sludge Lagoon is classified as significant hazard in Ohio. It was completed in 1992 and is 34 years old. Its primary use is tailings. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 11 ft (taller than 3.9% in OH)
Dam Length3,860 ft
Dam TypeEarth
Max Storage131 acre-ft
Normal Storage100 acre-ft
Surface Area10 acres
Drainage Area0 sq mi
Max Discharge1 cfs
Year Completed1992 (34 years old)
NID IDOH02806

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: Yes
Last Inspection: May 4, 2021
State Regulated: Yes
Regulatory Agency: Department of Natural Resources

Ownership

City of Hamilton

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Hamilton Lime Sludge Lagoon?

Hamilton Lime Sludge Lagoon 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 Hamilton Lime Sludge Lagoon?

Hamilton Lime Sludge Lagoon is owned by City of Hamilton (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Hamilton Lime Sludge Lagoon built?

Hamilton Lime Sludge Lagoon was completed in 1992, making it 34 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 Hamilton Lime Sludge Lagoon?

Hamilton Lime Sludge Lagoon serves the following purposes: Tailings. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Hamilton Lime Sludge Lagoon?

Hamilton Lime Sludge Lagoon 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 Hamilton Lime Sludge Lagoon last inspected?

Hamilton Lime Sludge Lagoon was last inspected on May 4, 2021. 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.