Sidehill Detention Basin Dam

SUN VALLEY CREEK-TR· Washoe, Nevada· Built 1998· Earth· 14 ft tall
Significant Hazard Flood Risk Reduction Local Government

Key Takeaway

Sidehill Detention Basin Dam is classified as significant hazard in Nevada. It was completed in 1998 and is 28 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 14 ft (taller than 23.1% in NV)
Dam Length200 ft
Dam TypeEarth
Max Storage71 acre-ft
Normal Storage0 acre-ft
Surface Area7 acres
Drainage Area1 sq mi
Max Discharge433 cfs
Year Completed1998 (28 years old)
NID IDNV10509

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: June 28, 2021
State Regulated: Yes
Regulatory Agency: NEVADA DWR

Ownership

WASHOE COUNTY

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Sidehill Detention Basin Dam?

Sidehill Detention Basin Dam 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 Sidehill Detention Basin Dam?

Sidehill Detention Basin Dam is owned by WASHOE COUNTY (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Sidehill Detention Basin Dam built?

Sidehill Detention Basin Dam was completed in 1998, making it 28 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 Sidehill Detention Basin Dam?

Sidehill Detention Basin Dam serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Sidehill Detention Basin Dam?

Sidehill Detention Basin Dam has a dam height of 14 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 Sidehill Detention Basin Dam last inspected?

Sidehill Detention Basin Dam was last inspected on June 28, 2021. 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.