Reservoir C

Modoc, California· Built 1911· Earth· 20 ft tall
Significant Hazard Fish And Wildlife Pond Fire Protection Stock Or Small Fish Pond Federal Government

Key Takeaway

Reservoir C is classified as significant hazard in California. It was completed in 1911 and is 115 years old. Its primary use is fish and wildlife pond. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 20 ft (taller than 15.3% in CA)
Dam Length850 ft
Dam TypeEarth
Normal Storage2.0K acre-ft
Drainage Area14 sq mi
Max Discharge845 cfs
Year Completed1911 (115 years old)
NID IDCA10325

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: March 10, 2016
State Regulated: No

Ownership

USDA FS

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Reservoir C?

Reservoir C is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Reservoir C?

Reservoir C is owned by USDA FS (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Reservoir C built?

Reservoir C was completed in 1911, making it 115 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 Reservoir C?

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

How tall is Reservoir C?

Reservoir C has a dam height of 20 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 Reservoir C last inspected?

Reservoir C was last inspected on March 10, 2016. 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.