Prosser Diversion
Key Takeaway
Prosser Diversion is classified as low hazard in Washington. It was completed in 1916 and is 110 years old. Its primary use is irrigation.
Physical Details
| Dam Height | 9 ft (taller than 2.2% in WA) |
| Dam Length | 661 ft |
| Dam Type | Concrete |
| Max Storage | 350 acre-ft |
| Normal Storage | 350 acre-ft |
| Year Completed | 1916 (110 years old) |
| NID ID | WA01378 |
Safety Information
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?
Ownership
RECLAMATION
Federal Government
Nearby Dams
Tree Top Prosser Lagoons 2 & 3
Benton, WA
Significant HazardProsser Warehouse Treatment Lagoon
Benton, WA
Significant HazardBaby Gap Ranch Reservoir
Benton, WA
High HazardGap Road Reservoir
Benton, WA
High HazardSunnyside Mp 59.29 Reservoir
Benton, WA
High HazardRoza Wasteway 6 Reregulation Reservoir
Benton, WA
Low HazardByron Ponds Dam
Yakima, WA
Low HazardGrandview Wastewater Lagoon F Dam
Yakima, WA
Significant HazardFrequently Asked Questions
What is the hazard classification of Prosser Diversion?
Prosser Diversion 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 Prosser Diversion?
Prosser Diversion is owned by RECLAMATION (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Prosser Diversion built?
Prosser Diversion was completed in 1916, making it 110 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 Prosser Diversion?
Prosser Diversion serves the following purposes: Irrigation, Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Prosser Diversion?
Prosser Diversion has a dam height of 9 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.