US Bridges

SR579 Bonanza RD over Las Vegas Wash

Fair

Clark County, Nevada · Las Vegas · Structure no. B1538

Built
1973
52 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete Continuous
Length
168 ft
5 main spans
Daily traffic
28,900
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

SR579 Bonanza RD over Las Vegas Wash is a concrete continuous slab carrying SR579 Bonanza RD over Las Vegas Wash in Clark County, Nevada. It was built in 1973, so it is 52 years old, older than the Nevada average of 36.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 28,900 vehicles a day, roughly 6% of them trucks, projected to reach 59,769 by 2040. The structure is 168 ft (51.2 m) long and 102 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR579 Bonanza RD
CrossesLas Vegas Wash
LocationLas Vegas
RouteState Highway 579
CountyClark County
StateNevada
Coordinates36.17378, -115.06882
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.4 US tons
Inventory rating54.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length168 ft (51.2 m)
Longest span36 ft (11 m)
Deck width102 ft (31.1 m)
Roadway width90 ft (27.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,900 (2017)
Projected traffic59,769 by 2040
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR579 Bonanza RD over Las Vegas Wash built?

It was built in 1973, making it 52 years old in 2025.

What condition is SR579 Bonanza RD over Las Vegas Wash in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does SR579 Bonanza RD over Las Vegas Wash carry?

About 28,900 vehicles per day (2017 count), of which roughly 6% are trucks.

How long is SR579 Bonanza RD over Las Vegas Wash?

The structure is 168 ft (51.2 m) long with a longest span of 36 ft (11 m) and a deck 102 ft wide.

Who owns SR579 Bonanza RD over Las Vegas Wash?

It is owned by the City or Municipal Highway Agency.