US Bridges

I-15 (SR-15) Nbl over 1700 South Street

Fair

Salt Lake County, Utah · 400 West 1700 South Slc. · Structure no. 1F 633N

Built
2000
25 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
138 ft
1 main span
Daily traffic
245,310
2014 count
Owner
State
State Highway Agency

About this bridge

I-15 (SR-15) Nbl over 1700 South Street is a prestressed concrete stringer/multi-beam or girder carrying I-15 (SR-15) Nbl over 1700 South Street 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 245,310 vehicles a day, roughly 11% of them trucks, projected to reach 306,638 by 2034. The structure is 138 ft (42.2 m) long and 85 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-15 (SR-15) Nbl
Crosses1700 South Street
Location400 West 1700 South Slc.
RouteInterstate 15
CountySalt Lake County
StateUtah
Coordinates40.73318, -111.90469
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 rating57.1 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length138 ft (42.2 m)
Longest span135 ft (41.3 m)
Deck width85 ft (25.9 m)
Roadway width82 ft (25.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic245,310 (2014)
Projected traffic306,638 by 2034
Trucks11%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
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) Nbl over 1700 South Street built?

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

What condition is I-15 (SR-15) Nbl over 1700 South Street 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-15 (SR-15) Nbl over 1700 South Street carry?

About 245,310 vehicles per day (2014 count), of which roughly 11% are trucks.

How long is I-15 (SR-15) Nbl over 1700 South Street?

The structure is 138 ft (42.2 m) long with a longest span of 135 ft (41.3 m) and a deck 85 ft wide.

Who owns I-15 (SR-15) Nbl over 1700 South Street?

It is owned by the State Highway Agency.