Sunrise Mountain Landfill Detention Basin Dam

Sunrise Mountain Landfill Detention Basin Dam is an earth dam located in Clark County, Nevada, built in 2012. It carries a Low hazard potential classification and has a fair condition assessment.

About Sunrise Mountain Landfill Detention Basin Dam

The primary purpose of Sunrise Mountain Landfill Detention Basin 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 Republic Services Inc (private). It impounds the Las Vegas Wash-tr near Las Vegas.

The dam stands 42 feet tall and stretches 990 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 416 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 2012, the structure is relatively new.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. 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 12/01/2020.

At 42 feet, this dam is taller than 89% of dams nationwide.

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Low HazardFair ConditionEmergency Action Plan: Yes

Location

StateNevada
CountyClark
Nearest CityLas Vegas
River/StreamLas Vegas Wash-tr
Coordinates36.16017, -114.99032

Physical Characteristics

Dam TypeEarth
NID Height42 ft
Dam Height36 ft
Dam Length990 ft
Year Completed2012 (14 years old)

Storage & Hydraulics

NID Storage416 acre-ft
Max Storage416 acre-ft
Surface Area15 acres
Drainage Area1 sq mi
Max Discharge13,755 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerREPUBLIC SERVICES INC
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection12/01/2020
Emergency Action PlanYes

Identifiers

NID IDNV10772
Federal IDNV10772
More InfoState Dam Safety Program

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