Airport Reservoir D

Offstream· Sonoma, California· Built 2002· Earth· 45 ft tall
Significant Hazard Water Supply Other Irrigation Local Government

Key Takeaway

Airport Reservoir D is classified as significant hazard in California. It was completed in 2002 and is 24 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 45 ft (taller than 54% in CA)
Dam Length2,125 ft
Dam TypeEarth
Max Storage315 acre-ft
Surface Area12 acres
Drainage Area0 sq mi
Year Completed2002 (24 years old)
NID IDCA01445

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: Yes
Last Inspection: August 10, 2022
State Regulated: Yes
Regulatory Agency: DWR, Division of Safety of Dams

Ownership

Sonoma County Water Agency

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Airport Reservoir D?

Airport Reservoir D 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 Airport Reservoir D?

Airport Reservoir D is owned by Sonoma County Water Agency (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Airport Reservoir D built?

Airport Reservoir D was completed in 2002, making it 24 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 Airport Reservoir D?

Airport Reservoir D serves the following purposes: Water Supply, Other, Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Airport Reservoir D?

Airport Reservoir D has a dam height of 45 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 Airport Reservoir D last inspected?

Airport Reservoir D was last inspected on August 10, 2022. 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.