US Bridges

Lamb Bl over Las Vegas Wash

Fair

Clark County, Nevada · Las Vegas · Structure no. B1875

Built
1987
38 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete Continuous
Length
144 ft
4 main spans
Daily traffic
28,000
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lamb Bl over Las Vegas Wash is a concrete continuous slab carrying Lamb Bl over Las Vegas Wash in Clark County, Nevada. It was built in 1987, so it is 38 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 28,000 vehicles a day, roughly 3% of them trucks, projected to reach 57,907 by 2040. The structure is 144 ft (43.9 m) long and 102 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLamb Bl
CrossesLas Vegas Wash
LocationLas Vegas
RouteCity Street 0
CountyClark County
StateNevada
Coordinates36.18249, -115.08021
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 protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.4 US tons
Inventory rating51.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length144 ft (43.9 m)
Longest span40 ft (12.2 m)
Deck width102 ft (31.1 m)
Roadway width89 ft (27.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,000 (2017)
Projected traffic57,907 by 2040
Trucks3%
Lanes on structure7
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 Lamb Bl over Las Vegas Wash built?

It was built in 1987, making it 38 years old in 2025.

What condition is Lamb Bl 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 Lamb Bl over Las Vegas Wash carry?

About 28,000 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Lamb Bl over Las Vegas Wash?

The structure is 144 ft (43.9 m) long with a longest span of 40 ft (12.2 m) and a deck 102 ft wide.

Who owns Lamb Bl over Las Vegas Wash?

It is owned by the City or Municipal Highway Agency.