US Bridges

I-15 (SR-15) Sbl over SR-266 4500 So.Int.X-Rd.

Fair

Salt Lake County, Utah · 4500 South Interchange · Structure no. 3F 617S

Built
1999
26 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
212 ft
1 main span
Daily traffic
213,790
2014 count
Owner
State
State Highway Agency

About this bridge

I-15 (SR-15) Sbl over SR-266 4500 So.Int.X-Rd. is a prestressed concrete stringer/multi-beam or girder carrying I-15 (SR-15) Sbl over SR-266 4500 So.Int.X-Rd. in Salt Lake County, Utah. It was built in 1999, so it is 26 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 213,790 vehicles a day, roughly 28% of them trucks, projected to reach 267,238 by 2034. The structure is 212 ft (64.5 m) long and 85 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-15 (SR-15) Sbl
CrossesSR-266 4500 So.Int.X-Rd.
Location4500 South Interchange
RouteInterstate 15
CountySalt Lake County
StateUtah
Coordinates40.67484, -111.90184
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.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating53.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length212 ft (64.5 m)
Longest span201 ft (61.4 m)
Deck width85 ft (25.9 m)
Roadway width82 ft (25.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic213,790 (2014)
Projected traffic267,238 by 2034
Trucks28%
Lanes on structure5
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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 SR-266 4500 So.Int.X-Rd. built?

It was built in 1999, making it 26 years old in 2025.

What condition is I-15 (SR-15) Sbl over SR-266 4500 So.Int.X-Rd. 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 SR-266 4500 So.Int.X-Rd. carry?

About 213,790 vehicles per day (2014 count), of which roughly 28% are trucks.

How long is I-15 (SR-15) Sbl over SR-266 4500 So.Int.X-Rd.?

The structure is 212 ft (64.5 m) long with a longest span of 201 ft (61.4 m) and a deck 85 ft wide.

Who owns I-15 (SR-15) Sbl over SR-266 4500 So.Int.X-Rd.?

It is owned by the State Highway Agency.