US Bridges

I-15 (SR-15) Sbl over UPRR and Uta Tracks

Fair

Salt Lake County, Utah · Approx. 300 W.3400 South · Structure no. 3F 618S

Built
2000
25 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
314 ft
3 main spans
Daily traffic
218,515
2014 count
Owner
State
State Highway Agency

About this bridge

I-15 (SR-15) Sbl over UPRR and Uta Tracks is a prestressed concrete continuous stringer/multi-beam or girder carrying I-15 (SR-15) Sbl over UPRR and Uta Tracks in Salt Lake County, Utah. It was built in 2000, so it is 25 years old, younger than the Utah average of 40.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 218,515 vehicles a day, roughly 24% of them trucks, projected to reach 273,144 by 2034. The structure is 314 ft (95.7 m) long and 105 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-15 (SR-15) Sbl
CrossesUPRR and Uta Tracks
LocationApprox. 300 W.3400 South
RouteInterstate 15
CountySalt Lake County
StateUtah
Coordinates40.69571, -111.90249
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length314 ft (95.7 m)
Longest span126 ft (38.3 m)
Deck width105 ft (31.9 m)
Roadway width102 ft (31 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic218,515 (2014)
Projected traffic273,144 by 2034
Trucks24%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 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 UPRR and Uta Tracks built?

It was built in 2000, making it 25 years old in 2025.

What condition is I-15 (SR-15) Sbl over UPRR and Uta Tracks in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does I-15 (SR-15) Sbl over UPRR and Uta Tracks carry?

About 218,515 vehicles per day (2014 count), of which roughly 24% are trucks.

How long is I-15 (SR-15) Sbl over UPRR and Uta Tracks?

The structure is 314 ft (95.7 m) long with a longest span of 126 ft (38.3 m) and a deck 105 ft wide.

Who owns I-15 (SR-15) Sbl over UPRR and Uta Tracks?

It is owned by the State Highway Agency.