US Bridges

I15N over US95

Good

Clark County, Nevada · N Spaghetti Bowl · Structure no. I3221N

Built
2018
7 years old
Condition
Good
inspected January 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
326 ft
2 main spans
Daily traffic
160,000
2014 count
Owner
State
State Highway Agency

About this bridge

I15N over US95 is a prestressed concrete stringer/multi-beam or girder carrying I15N over US95 in Clark County, Nevada. It was built in 2018, so it is 7 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 160,000 vehicles a day, roughly 8% of them trucks, projected to reach 170,000 by 2034. The structure is 326 ft (99.3 m) long and 93 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI15N
CrossesUS95
LocationN Spaghetti Bowl
RouteInterstate 15
StateNevada
Coordinates36.17435, -115.15488
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating37.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length326 ft (99.3 m)
Longest span162 ft (49.3 m)
Deck width93 ft (28.3 m)
Roadway width90 ft (27.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160,000 (2014)
Projected traffic170,000 by 2034
Trucks8%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I15N over US95 built?

It was built in 2018, making it 7 years old in 2025.

What condition is I15N over US95 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 January 2021.

How much traffic does I15N over US95 carry?

About 160,000 vehicles per day (2014 count), of which roughly 8% are trucks.

How long is I15N over US95?

The structure is 326 ft (99.3 m) long with a longest span of 162 ft (49.3 m) and a deck 93 ft wide.

Who owns I15N over US95?

It is owned by the State Highway Agency.