Simplot Waste Lagoon #1

OFF CHANNEL· Umatilla, Oregon· Earth· 46 ft tall
Significant Hazard Other Private

Key Takeaway

Simplot Waste Lagoon #1 is classified as significant hazard in Oregon. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 46 ft (taller than 82.3% in OR)
Dam Length0 ft
Dam TypeEarth
Max Storage0 acre-ft
Normal Storage535 acre-ft
Surface Area0 acres
Drainage Area0 sq mi
Max Discharge0 cfs
NID IDOR03858

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: March 22, 2018
State Regulated: Yes
Regulatory Agency: OWRD

Ownership

JR SIMPLOT COMPANY FOOD DIVISION

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Simplot Waste Lagoon #1?

Simplot Waste Lagoon #1 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 Simplot Waste Lagoon #1?

Simplot Waste Lagoon #1 is owned by JR SIMPLOT COMPANY FOOD DIVISION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Simplot Waste Lagoon #1?

Simplot Waste Lagoon #1 serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Simplot Waste Lagoon #1?

Simplot Waste Lagoon #1 has a dam height of 46 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 Simplot Waste Lagoon #1 last inspected?

Simplot Waste Lagoon #1 was last inspected on March 22, 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.