US Bridges

ON-RAMPI15S over Dry Wash

Good

Clark County, Nevada · Las Vegas · Structure no. B2874

Built
2007
18 years old
Condition
Good
inspected February 2021
Type
Culvert
Concrete
Length
112 ft
8 main spans
Daily traffic
7,350
2021 count
Owner
State
State Highway Agency

About this bridge

ON-RAMPI15S over Dry Wash is a concrete culvert carrying ON-RAMPI15S over Dry Wash in Clark County, Nevada. It was built in 2007, so it is 18 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 7,350 vehicles a day, roughly 5% of them trucks, projected to reach 11,375 by 2040. The structure is 112 ft (34.2 m) long and 78 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesON-RAMPI15S
CrossesDry Wash
LocationLas Vegas
RouteInterstate 15
StateNevada
Coordinates36.04251, -115.18134
Functional classUrban Principal Arterial - Interstate

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 inspectionFebruary 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.2 US tons
Inventory rating40.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans8
Design loadHS 20 + Mod
Structure length112 ft (34.2 m)
Longest span12 ft (3.6 m)
Deck width78 ft (23.7 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,350 (2021)
Projected traffic11,375 by 2040
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 ON-RAMPI15S over Dry Wash built?

It was built in 2007, making it 18 years old in 2025.

What condition is ON-RAMPI15S over Dry 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 February 2021.

How much traffic does ON-RAMPI15S over Dry Wash carry?

About 7,350 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is ON-RAMPI15S over Dry Wash?

The structure is 112 ft (34.2 m) long with a longest span of 12 ft (3.6 m) and a deck 78 ft wide.

Who owns ON-RAMPI15S over Dry Wash?

It is owned by the State Highway Agency.