Meridian Reservoir

UNNAMED TRIB/ROCK CREEK· Clackamas, Oregon· Built 1994· Earth· 38 ft tall
Low Hazard Irrigation Private

Key Takeaway

Meridian Reservoir is classified as low hazard in Oregon. It was completed in 1994 and is 32 years old. Its primary use is irrigation.

Physical Details

Dam Height 38 ft (taller than 74.5% in OR)
Dam Length0 ft
Dam TypeEarth
Max Storage0 acre-ft
Normal Storage95 acre-ft
Surface Area0 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1994 (32 years old)
NID IDOR03725

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: October 21, 2015
State Regulated: Yes
Regulatory Agency: OWRD

Ownership

COLUMBIA TRUST CO.

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Meridian Reservoir?

Meridian 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 Meridian Reservoir?

Meridian Reservoir is owned by COLUMBIA TRUST CO. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Meridian Reservoir built?

Meridian Reservoir was completed in 1994, making it 32 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 Meridian Reservoir?

Meridian 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 Meridian Reservoir?

Meridian Reservoir has a dam height of 38 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 Meridian Reservoir last inspected?

Meridian Reservoir was last inspected on October 21, 2015. 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.