US Bridges

I-15 (SR-15) Sbl over Union Pacific Railroad

Good

Utah County, Utah · 1.1 MI No of Provo Inter. · Structure no. 3C 998

Built
2011
14 years old
Condition
Good
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
195 ft
1 main span
Daily traffic
179,133
2023 count
Owner
State
State Highway Agency

About this bridge

I-15 (SR-15) Sbl over Union Pacific Railroad is a steel stringer/multi-beam or girder carrying I-15 (SR-15) Sbl over Union Pacific Railroad in Utah County, Utah. It was built in 2011, so it is 14 years old, younger than the Utah average of 40.1 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 179,133 vehicles a day, roughly 22% of them trucks, projected to reach 214,960 by 2043. The structure is 195 ft (59.3 m) long and 101 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-15 (SR-15) Sbl
CrossesUnion Pacific Railroad
Location1.1 MI No of Provo Inter.
RouteInterstate 15
CountyUtah County
StateUtah
Coordinates40.24918, -111.6955
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.4 US tons
Inventory rating34.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length195 ft (59.3 m)
Longest span188 ft (57.3 m)
Deck width101 ft (30.7 m)
Roadway width98 ft (29.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic179,133 (2023)
Projected traffic214,960 by 2043
Trucks22%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 I-15 (SR-15) Sbl over Union Pacific Railroad built?

It was built in 2011, making it 14 years old in 2025.

What condition is I-15 (SR-15) Sbl over Union Pacific Railroad 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 2023.

How much traffic does I-15 (SR-15) Sbl over Union Pacific Railroad carry?

About 179,133 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is I-15 (SR-15) Sbl over Union Pacific Railroad?

The structure is 195 ft (59.3 m) long with a longest span of 188 ft (57.3 m) and a deck 101 ft wide.

Who owns I-15 (SR-15) Sbl over Union Pacific Railroad?

It is owned by the State Highway Agency.