Koning "E" Reservoir

UNNAMED TRIB/ASH SWALE· Polk, Oregon· Built 1995· Earth· 24 ft tall
Significant Hazard Irrigation Private

Key Takeaway

Koning "E" Reservoir is classified as significant hazard in Oregon. It was completed in 1995 and is 31 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 24 ft (taller than 42.5% in OR)
Dam Length600 ft
Dam TypeEarth
Max Storage0 acre-ft
Normal Storage90 acre-ft
Surface Area4 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1995 (31 years old)
NID IDOR03740

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: September 20, 2018
State Regulated: Yes
Regulatory Agency: OWRD

Ownership

CONRAD KONING

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Koning "E" Reservoir?

Koning "E" Reservoir 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 Koning "E" Reservoir?

Koning "E" Reservoir is owned by CONRAD KONING (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Koning "E" Reservoir built?

Koning "E" Reservoir was completed in 1995, making it 31 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 Koning "E" Reservoir?

Koning "E" Reservoir 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 Koning "E" Reservoir?

Koning "E" Reservoir has a dam height of 24 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 Koning "E" Reservoir last inspected?

Koning "E" Reservoir was last inspected on September 20, 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.