Sili Lake Dam

TRIBUTARY TO GRAND RIVER· Ashtabula, Ohio· Built 1972· Earth· 15 ft tall
Low Hazard Recreation Private

Key Takeaway

Sili Lake Dam is classified as low hazard in Ohio. It was completed in 1972 and is 54 years old. Its primary use is recreation.

Physical Details

Dam Height 15 ft (taller than 12.4% in OH)
Dam Length550 ft
Dam TypeEarth
Max Storage92 acre-ft
Normal Storage53 acre-ft
Surface Area12 acres
Drainage Area1 sq mi
Max Discharge101 cfs
Year Completed1972 (54 years old)
NID IDOH01195

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: November 10, 2021
State Regulated: Yes
Regulatory Agency: Department of Natural Resources

Ownership

Multiple Owners - 1507-006

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Sili Lake Dam?

Sili Lake 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 Sili Lake Dam?

Sili Lake Dam is owned by Multiple Owners - 1507-006 (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Sili Lake Dam built?

Sili Lake Dam was completed in 1972, making it 54 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 Sili Lake Dam?

Sili Lake 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 Sili Lake Dam?

Sili Lake Dam has a dam height of 15 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 Sili Lake Dam last inspected?

Sili Lake Dam was last inspected on November 10, 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.