US Bridges

I-15 (SR-15) Sbl over I-215EB & Ramp to I-

Good

Salt Lake County, Utah · 6400 South Interchange · Structure no. 3C 832S

Built
1999
26 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
157 ft
1 main span
Daily traffic
246,810
2014 count
Owner
State
State Highway Agency

About this bridge

I-15 (SR-15) Sbl over I-215EB & Ramp to I- is a steel stringer/multi-beam or girder carrying I-15 (SR-15) Sbl over I-215EB & Ramp to I- 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 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 246,810 vehicles a day, roughly 27% of them trucks, projected to reach 308,513 by 2034. The structure is 157 ft (48 m) long and 84 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
CrossesI-215EB & Ramp to I-
Location6400 South Interchange
RouteInterstate 15
CountySalt Lake County
StateUtah
Coordinates40.63522, -111.90532
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.
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 rating89.3 US tons
Inventory rating46.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length157 ft (48 m)
Longest span155 ft (47.1 m)
Deck width84 ft (25.6 m)
Roadway width82 ft (25.1 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic246,810 (2014)
Projected traffic308,513 by 2034
Trucks27%
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 NetworkNon-Interstate 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 I-215EB & Ramp to I- built?

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

What condition is I-15 (SR-15) Sbl over I-215EB & Ramp to I- 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 October 2024.

How much traffic does I-15 (SR-15) Sbl over I-215EB & Ramp to I- carry?

About 246,810 vehicles per day (2014 count), of which roughly 27% are trucks.

How long is I-15 (SR-15) Sbl over I-215EB & Ramp to I-?

The structure is 157 ft (48 m) long with a longest span of 155 ft (47.1 m) and a deck 84 ft wide.

Who owns I-15 (SR-15) Sbl over I-215EB & Ramp to I-?

It is owned by the State Highway Agency.