Walters, Glenn #1 - Large
Key Takeaway
Walters, Glenn #1 - Large is classified as significant hazard in Oregon. It was completed in 1969 and is 57 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 25 ft (taller than 43.9% in OR) |
| Dam Length | 660 ft |
| Dam Type | Earth |
| Max Storage | 250 acre-ft |
| Normal Storage | 132 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 306 cfs |
| Year Completed | 1969 (57 years old) |
| NID ID | OR00495 |
Safety Information
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?
Ownership
TREESAP LLC, DBA: HINES GROWERS
Private
Nearby Dams
Unger-Bill Dam
Washington, OR
Significant Hazard 39 ftWalters, Glenn #5
Washington, OR
Significant Hazard 29 ftJesse Enlargement
Washington, OR
Significant Hazard 32 ftHoefer-Pierson Reservoir
Washington, OR
Significant Hazard 23 ftPierson-Upper
Washington, OR
Low Hazard 31 ftHochstein Dam #3
Washington, OR
Low Hazard 45 ftCook Reservoir (Wash)
Washington, OR
Significant Hazard 28 ftDober Reservoir
Washington, OR
Significant Hazard 23 ftFrequently Asked Questions
What is the hazard classification of Walters, Glenn #1 - Large?
Walters, Glenn #1 - Large 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 Walters, Glenn #1 - Large?
Walters, Glenn #1 - Large is owned by TREESAP LLC, DBA: HINES GROWERS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Walters, Glenn #1 - Large built?
Walters, Glenn #1 - Large was completed in 1969, making it 57 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 Walters, Glenn #1 - Large?
Walters, Glenn #1 - Large 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 Walters, Glenn #1 - Large?
Walters, Glenn #1 - Large has a dam height of 25 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 Walters, Glenn #1 - Large last inspected?
Walters, Glenn #1 - Large was last inspected on September 25, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.