US Bridges

W Harmon over Flamingo Wash

Good

Clark County, Nevada · Harmon @ Arville · Structure no. B3297

Built
2020
5 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
34 ft
3 main spans
Daily traffic
4,850
2020 count
Owner
County
County Highway Agency

About this bridge

W Harmon over Flamingo Wash is a concrete culvert carrying W Harmon over Flamingo Wash in Clark County, Nevada. It was built in 2020, so it is 5 years old, younger than the Nevada average of 36.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,850 vehicles a day, roughly 5% of them trucks, projected to reach 5,335 by 2040. The structure is 34 ft (10.3 m) long and 79 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesW Harmon
CrossesFlamingo Wash
LocationHarmon @ Arville
RouteCity Street 0
StateNevada
Coordinates36.10829, -115.19766
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length34 ft (10.3 m)
Longest span10 ft (3 m)
Deck width79 ft (24.2 m)
Roadway width67 ft (20.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,850 (2020)
Projected traffic5,335 by 2040
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 W Harmon over Flamingo Wash built?

It was built in 2020, making it 5 years old in 2025.

What condition is W Harmon over Flamingo Wash in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does W Harmon over Flamingo Wash carry?

About 4,850 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is W Harmon over Flamingo Wash?

The structure is 34 ft (10.3 m) long with a longest span of 10 ft (3 m) and a deck 79 ft wide.

Who owns W Harmon over Flamingo Wash?

It is owned by the County Highway Agency.