Roza Wasteway 6 Reregulation Reservoir

Offstream - Snipes Creek· Benton, Washington· Built 1988· Earth·
Low Hazard Irrigation Public Utility

Key Takeaway

Roza Wasteway 6 Reregulation Reservoir is classified as low hazard in Washington. It was completed in 1988 and is 38 years old. Its primary use is irrigation.

Physical Details

Dam Length2,150 ft
Dam TypeEarth
Max Storage150 acre-ft
Normal Storage65 acre-ft
Surface Area13 acres
Drainage Area0 sq mi
Max Discharge75 cfs
Year Completed1988 (38 years old)
NID IDWA00583

Safety Information

Low Hazard

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?

Emergency Action Plan: No
State Regulated: Yes
Regulatory Agency: Washington Dept of Ecology

Ownership

Roza Irrigation District

Public Utility

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Roza Wasteway 6 Reregulation Reservoir?

Roza Wasteway 6 Reregulation Reservoir 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 Roza Wasteway 6 Reregulation Reservoir?

Roza Wasteway 6 Reregulation Reservoir is owned by Roza Irrigation District (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Roza Wasteway 6 Reregulation Reservoir built?

Roza Wasteway 6 Reregulation Reservoir was completed in 1988, making it 38 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 Roza Wasteway 6 Reregulation Reservoir?

Roza Wasteway 6 Reregulation Reservoir serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

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.