Dragonfly Reservoir

ASH SWALE, TRIB TO· Yamhill, Oregon· Built 2006· Earth· 28 ft tall

Key Takeaway

Dragonfly Reservoir is classified as low hazard in Oregon. It was completed in 2006 and is 20 years old. Its primary use is fire protection.

Physical Details

Dam Height 28 ft (taller than 54.8% in OR)
Dam Length0 ft
Dam TypeEarth
Max Storage0 acre-ft
Normal Storage38 acre-ft
Surface Area0 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed2006 (20 years old)
NID IDOR02511

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
Last Inspection: September 26, 2018
State Regulated: Yes
Regulatory Agency: OWRD

Ownership

DUKES FAMILY VINEYARDS, LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Dragonfly Reservoir?

Dragonfly 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 Dragonfly Reservoir?

Dragonfly Reservoir is owned by DUKES FAMILY VINEYARDS, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Dragonfly Reservoir built?

Dragonfly Reservoir was completed in 2006, making it 20 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 Dragonfly Reservoir?

Dragonfly Reservoir serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Dragonfly Reservoir?

Dragonfly Reservoir has a dam height of 28 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 Dragonfly Reservoir last inspected?

Dragonfly Reservoir was last inspected on September 26, 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.