US Bridges

Koval Lane over Tropicana Wash

Fair

Clark County, Nevada · Las Vegas · Structure no. B1388

Built
1974
51 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
250
2017 count
Owner
County
County Highway Agency

About this bridge

Koval Lane over Tropicana Wash is a concrete culvert carrying Koval Lane over Tropicana Wash in Clark County, Nevada. It was built in 1974, so it is 51 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 6 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 250 vehicles a day, roughly 3% of them trucks, projected to reach 517 by 2040. The structure is 26 ft (7.9 m) long and 75 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesKoval Lane
CrossesTropicana Wash
LocationLas Vegas
RouteCounty Highway 0
CountyClark County
StateNevada
Coordinates36.10702, -115.16391
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width75 ft (22.9 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2017)
Projected traffic517 by 2040
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Koval Lane over Tropicana Wash built?

It was built in 1974, making it 51 years old in 2025.

What condition is Koval Lane over Tropicana 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 February 2023.

How much traffic does Koval Lane over Tropicana Wash carry?

About 250 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Koval Lane over Tropicana Wash?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m) and a deck 75 ft wide.

Who owns Koval Lane over Tropicana Wash?

It is owned by the County Highway Agency.