Porter Cc Reservoir (Clackamas)

UNNAMED· Clackamas, Oregon· Built 1977· Earth· 21 ft tall
Low Hazard Recreation Private

Key Takeaway

Porter Cc Reservoir (Clackamas) is classified as low hazard in Oregon. It was completed in 1977 and is 49 years old. Its primary use is recreation.

Physical Details

Dam Height 21 ft (taller than 33.9% in OR)
Dam Length500 ft
Dam TypeEarth
Max Storage80 acre-ft
Normal Storage57 acre-ft
Surface Area6 acres
Drainage Area0 sq mi
Max Discharge12 cfs
Year Completed1977 (49 years old)
NID IDOR00644

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 12, 2018
State Regulated: Yes
Regulatory Agency: OWRD

Ownership

DAN MYRICK

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Porter Cc Reservoir (Clackamas)?

Porter Cc Reservoir (Clackamas) 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 Porter Cc Reservoir (Clackamas)?

Porter Cc Reservoir (Clackamas) is owned by DAN MYRICK (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Porter Cc Reservoir (Clackamas) built?

Porter Cc Reservoir (Clackamas) was completed in 1977, making it 49 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 Porter Cc Reservoir (Clackamas)?

Porter Cc Reservoir (Clackamas) serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Porter Cc Reservoir (Clackamas)?

Porter Cc Reservoir (Clackamas) has a dam height of 21 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 Porter Cc Reservoir (Clackamas) last inspected?

Porter Cc Reservoir (Clackamas) was last inspected on September 12, 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.