Silver Lake

THURMON CREEK HENRYS FORK· Fremont, Idaho· Built 1915· 13 ft tall
Significant Hazard Recreation State Government

Key Takeaway

Silver Lake is classified as significant hazard in Idaho. It was completed in 1915 and is 111 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 13 ft (taller than 5.1% in ID)
Dam Length940 ft
Normal Storage700 acre-ft
Surface Area204 acres
Drainage Area29 sq mi
Max Discharge130 cfs
Year Completed1915 (111 years old)
Year Modified1996
NID IDID00403

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: August 14, 2018
State Regulated: Yes
Regulatory Agency: IDWR

Ownership

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Silver Lake?

Silver Lake 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 Silver Lake?

Silver Lake is owned by information not available (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Silver Lake built?

Silver Lake was completed in 1915, making it 111 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 Silver Lake?

Silver Lake 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 Silver Lake?

Silver Lake has a dam height of 13 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 Silver Lake last inspected?

Silver Lake was last inspected on August 14, 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.