Simplot Waste Lagoon #1 is an earth dam located in Umatilla County, Oregon. It carries a Significant hazard potential classification.
Dam profile
NID height · 46 ft46 ft tall, taller than 91% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Simplot Waste Lagoon #1
Simplot Waste Lagoon #1 is a dam in Umatilla, Oregon. The dam is owned by Jr Simplot Company Food Division (private). It impounds the Off Channel near Hermiston.
The dam stands 46 feet tall, and has a storage capacity of 535 acre-feet.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 03/22/2018.
At 46 feet, this dam is taller than 91% of dams nationwide.
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Location
| State | Oregon |
| County | Umatilla |
| Nearest City | Hermiston |
| River/Stream | Off Channel |
| Coordinates | 45.76545, -119.33382 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 46 ft |
| Dam Height | 46 ft |
Storage & Hydraulics
| NID Storage | 535 acre-ft |
| Normal Storage | 535 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Jr Simplot Company Food Division |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 03/22/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OR03858 |
| Federal ID | OR03858 |
| More Info | State Dam Safety Program |