Stoney Mountain

Yamhill, Oregon· 77 ft tall
Low Hazard Fire Protection Stock Or Small Fish Pond Irrigation Local Government

Key Takeaway

Stoney Mountain is classified as low hazard in Oregon. Its primary use is fire protection.

Physical Details

Dam Height 77 ft (taller than 91.3% in OR)
Max Storage184 acre-ft
Normal Storage184 acre-ft
NID IDOR03897

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 16, 2019
State Regulated: Yes
Regulatory Agency: OWRD

Ownership

CITY OF SHERIDAN

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Stoney Mountain?

Stoney Mountain 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 Stoney Mountain?

Stoney Mountain is owned by CITY OF SHERIDAN (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Stoney Mountain?

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

How tall is Stoney Mountain?

Stoney Mountain has a dam height of 77 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 Stoney Mountain last inspected?

Stoney Mountain was last inspected on September 16, 2019. 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.