Hawn Creek Reservoir

HAWN CREEK· Yamhill, Oregon· Built 1961· Earth· 23 ft tall
Low Hazard Irrigation Local Government

Key Takeaway

Hawn Creek Reservoir is classified as low hazard in Oregon. It was completed in 1961 and is 65 years old. Its primary use is irrigation.

Physical Details

Dam Height 23 ft (taller than 39.8% in OR)
Dam Length268 ft
Dam TypeEarth
Max Storage250 acre-ft
Normal Storage153 acre-ft
Surface Area27 acres
Drainage Area11 sq mi
Max Discharge1,430 cfs
Year Completed1961 (65 years old)
NID IDOR00367

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: March 25, 2014
State Regulated: Yes
Regulatory Agency: OWRD

Ownership

HAWN CREEK DISTRICT IMPROVEMENT COMPANY

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Hawn Creek Reservoir?

Hawn Creek 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 Hawn Creek Reservoir?

Hawn Creek Reservoir is owned by HAWN CREEK DISTRICT IMPROVEMENT COMPANY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Hawn Creek Reservoir built?

Hawn Creek Reservoir was completed in 1961, making it 65 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 Hawn Creek Reservoir?

Hawn Creek Reservoir 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 Hawn Creek Reservoir?

Hawn Creek Reservoir has a dam height of 23 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 Hawn Creek Reservoir last inspected?

Hawn Creek Reservoir was last inspected on March 25, 2014. 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.