US Bridges

Koval LN over Flamingo Wash

Fair

Clark County, Nevada · Las Vegas · Structure no. B1757

Built
1978
47 years old
Condition
Fair
inspected December 2020
Type
Culvert
Concrete
Length
51 ft
4 main spans
Daily traffic
29,500
2017 count
Owner
County
County Highway Agency

About this bridge

Koval LN over Flamingo Wash is a concrete culvert carrying Koval LN over Flamingo Wash in Clark County, Nevada. It was built in 1978, so it is 47 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 29,500 vehicles a day, roughly 3% of them trucks, projected to reach 61,009 by 2040. The structure is 51 ft (15.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesKoval LN
CrossesFlamingo Wash
LocationLas Vegas
RouteCounty Highway 0
CountyClark County
StateNevada
Coordinates36.1172, -115.16395
Functional classUrban Collector

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 inspectionDecember 2020
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.8 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,500 (2017)
Projected traffic61,009 by 2040
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Koval LN over Flamingo Wash built?

It was built in 1978, making it 47 years old in 2025.

What condition is Koval LN over Flamingo 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 December 2020.

How much traffic does Koval LN over Flamingo Wash carry?

About 29,500 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Koval LN over Flamingo Wash?

The structure is 51 ft (15.5 m) long with a longest span of 11 ft (3.4 m).

Who owns Koval LN over Flamingo Wash?

It is owned by the County Highway Agency.