Lemolo No 2 Forebay

North Umpqua - Off Stream· Douglas, Oregon· Built 1956· Earth· 30 ft tall
Low Hazard Hydroelectric Private

Key Takeaway

Lemolo No 2 Forebay is classified as low hazard in Oregon. It was completed in 1956 and is 70 years old. Its primary use is hydroelectric.

Physical Details

Dam Height 30 ft (taller than 58.4% in OR)
Dam Length2,406 ft
Dam TypeEarth
Max Storage265 acre-ft
Normal Storage231 acre-ft
Surface Area23 acres
Year Completed1956 (70 years old)
NID IDOR00564

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: July 14, 2017
State Regulated: No

Ownership

PacifiCorp

Private

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Fish Creek Diversion Dam

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Clearwater No 1 Forebay

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Stump Lake Dam

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Frequently Asked Questions

What is the hazard classification of Lemolo No 2 Forebay?

Lemolo No 2 Forebay 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 Lemolo No 2 Forebay?

Lemolo No 2 Forebay is owned by PacifiCorp (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lemolo No 2 Forebay built?

Lemolo No 2 Forebay was completed in 1956, making it 70 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 Lemolo No 2 Forebay?

Lemolo No 2 Forebay serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Lemolo No 2 Forebay?

Lemolo No 2 Forebay has a dam height of 30 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 Lemolo No 2 Forebay last inspected?

Lemolo No 2 Forebay was last inspected on July 14, 2017. 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.