US Bridges

I 15 over Virgin River

Good

Mohave County, Arizona · 15.6 MI E of Nevada · Structure no. 01619

Built
1973
52 years old, rebuilt 2015
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
649 ft
4 main spans
Daily traffic
32,011
2022 count
Owner
State
State Highway Agency

About this bridge

I 15 over Virgin River is a steel continuous stringer/multi-beam or girder carrying I 15 over Virgin River in Mohave County, Arizona. It was built in 1973 and reconstructed in 2015, so it is 52 years old, older than the Arizona average of 47.8 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 32,011 vehicles a day, roughly 32% of them trucks, projected to reach 32,021 by 2042. The structure is 649 ft (197.8 m) long and 87 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesI 15
CrossesVirgin River
Location15.6 MI E of Nevada
RouteInterstate 15
StateArizona
Coordinates36.928, -113.8313
Functional classRural 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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 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 alignment6: Equal to present minimum criteria
Operating rating71 US tons
Inventory rating42 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length649 ft (197.8 m)
Longest span225 ft (68.6 m)
Deck width87 ft (26.4 m)
Roadway width81 ft (24.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,011 (2022)
Projected traffic32,021 by 2042
Trucks32%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$5,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I 15 over Virgin River built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2015.

What condition is I 15 over Virgin River 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 October 2024.

How much traffic does I 15 over Virgin River carry?

About 32,011 vehicles per day (2022 count), of which roughly 32% are trucks.

How long is I 15 over Virgin River?

The structure is 649 ft (197.8 m) long with a longest span of 225 ft (68.6 m) and a deck 87 ft wide.

Who owns I 15 over Virgin River?

It is owned by the State Highway Agency.