Summit

SPRINGS SUMMIT CREEK· Custer, Idaho· Built 1921· 19 ft tall
Low Hazard Irrigation Private

Key Takeaway

Summit is classified as low hazard in Idaho. It was completed in 1921 and is 105 years old. Its primary use is irrigation.

Physical Details

Dam Height 19 ft (taller than 24.4% in ID)
Dam Length650 ft
Normal Storage752 acre-ft
Surface Area122 acres
Drainage Area9 sq mi
Max Discharge5 cfs
Year Completed1921 (105 years old)
NID IDID00408

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: August 4, 2016
State Regulated: Yes
Regulatory Agency: IDWR

Ownership

Private

Frequently Asked Questions

What is the hazard classification of Summit?

Summit 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 Summit?

Summit is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Summit built?

Summit was completed in 1921, making it 105 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 Summit?

Summit serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Summit?

Summit 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 Summit last inspected?

Summit was last inspected on August 4, 2016. 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.