US Bridges

I-15SB (SR-15) over US-89SB UPRR & Uta

Fair

Salt Lake County, Utah · 2300 No.Becks St. in Slc · Structure no. 3F 774

Built
2010
15 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
615 ft
4 main spans
Daily traffic
114,570
2014 count
Owner
State
State Highway Agency

About this bridge

I-15SB (SR-15) over US-89SB UPRR & Uta is a prestressed concrete continuous stringer/multi-beam or girder carrying I-15SB (SR-15) over US-89SB UPRR & Uta in Salt Lake County, Utah. It was built in 2010, so it is 15 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 114,570 vehicles a day, roughly 9% of them trucks, projected to reach 143,213 by 2034. The structure is 615 ft (187.3 m) long and 75 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesI-15SB (SR-15)
CrossesUS-89SB UPRR & Uta
Location2300 No.Becks St. in Slc
RouteInterstate 15
CountySalt Lake County
StateUtah
Coordinates40.81748, -111.91883
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating28.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length615 ft (187.3 m)
Longest span197 ft (59.9 m)
Deck width75 ft (22.8 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic114,570 (2014)
Projected traffic143,213 by 2034
Trucks9%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkSTRAHNET connector

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-15SB (SR-15) over US-89SB UPRR & Uta built?

It was built in 2010, making it 15 years old in 2025.

What condition is I-15SB (SR-15) over US-89SB UPRR & Uta 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 July 2024.

How much traffic does I-15SB (SR-15) over US-89SB UPRR & Uta carry?

About 114,570 vehicles per day (2014 count), of which roughly 9% are trucks.

How long is I-15SB (SR-15) over US-89SB UPRR & Uta?

The structure is 615 ft (187.3 m) long with a longest span of 197 ft (59.9 m) and a deck 75 ft wide.

Who owns I-15SB (SR-15) over US-89SB UPRR & Uta?

It is owned by the State Highway Agency.