D'andrea Detention Basin #3 Dam

D'andrea Detention Basin #3 Dam is an earth dam located in Washoe County, Nevada. It carries a High hazard potential classification and has a fair condition assessment.

About D'andrea Detention Basin #3 Dam

The primary purpose of D'andrea Detention Basin #3 Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by D'andrea Nevada Llc (private). It impounds the North Truckee Drain-tr near Sparks.

The dam stands 11 feet tall and stretches 1,623 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 79 acre-feet, and collects water from a drainage area of 2 square miles.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 05/17/2023.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Nevada dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateNevada
CountyWashoe
Nearest CitySparks
River/StreamNorth Truckee Drain-tr
Coordinates39.55100, -119.70100

Physical Characteristics

Dam TypeEarth
NID Height11 ft
Dam Height11 ft
Dam Length1,623 ft

Storage & Hydraulics

NID Storage79 acre-ft
Max Storage79 acre-ft
Surface Area6 acres
Drainage Area2 sq mi
Max Discharge384 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerD'ANDREA NEVADA LLC
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection05/17/2023
Emergency Action PlanYes

Identifiers

NID IDNV10819
Federal IDNV10819
More InfoState Dam Safety Program

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