US Bridges

I 15 over Virgin River

Poor

Mohave County, Arizona · 22.6 MI E of Nevada · Structure no. 01236

Built
1967
58 years old, rebuilt 2013
Condition
Poor
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
496 ft
3 main spans
Daily traffic
32,192
2021 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 1967 and reconstructed in 2013, so it is 58 years old, older than the Arizona average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 32,192 vehicles a day, roughly 22% of them trucks, projected to reach 32,202 by 2041. The structure is 496 ft (151.2 m) long and 63 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesI 15
CrossesVirgin River
Location22.6 MI E of Nevada
RouteInterstate 15
StateArizona
Coordinates36.9705, -113.7301
Functional classRural Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating37 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length496 ft (151.2 m)
Longest span196 ft (59.7 m)
Deck width63 ft (19.2 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,192 (2021)
Projected traffic32,202 by 2041
Trucks22%
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$3,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I 15 over Virgin River built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2013.

What condition is I 15 over Virgin River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.

How much traffic does I 15 over Virgin River carry?

About 32,192 vehicles per day (2021 count), of which roughly 22% are trucks.

How long is I 15 over Virgin River?

The structure is 496 ft (151.2 m) long with a longest span of 196 ft (59.7 m) and a deck 63 ft wide.

Who owns I 15 over Virgin River?

It is owned by the State Highway Agency.