US Bridges

I-15 (SR-15) Sbl over SR-273

Fair

Davis County, Utah · Kaysville Interchange · Structure no. 3F 195

Built
1979
46 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
188 ft
3 main spans
Daily traffic
133,262
2023 count
Owner
State
State Highway Agency

About this bridge

I-15 (SR-15) Sbl over SR-273 is a prestressed concrete continuous stringer/multi-beam or girder carrying I-15 (SR-15) Sbl over SR-273 in Davis County, Utah. It was built in 1979, so it is 46 years old, older 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 133,262 vehicles a day, roughly 36% of them trucks, projected to reach 159,914 by 2043. The structure is 188 ft (57.3 m) long and 81 ft wide.

Location

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CarriesI-15 (SR-15) Sbl
CrossesSR-273
LocationKaysville Interchange
RouteInterstate 15
CountyDavis County
StateUtah
Coordinates41.03833, -111.94944
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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length188 ft (57.3 m)
Longest span108 ft (32.9 m)
Deck width81 ft (24.7 m)
Roadway width78 ft (23.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic133,262 (2023)
Projected traffic159,914 by 2043
Trucks36%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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-273 built?

It was built in 1979, making it 46 years old in 2025.

What condition is I-15 (SR-15) Sbl over SR-273 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 June 2023.

How much traffic does I-15 (SR-15) Sbl over SR-273 carry?

About 133,262 vehicles per day (2023 count), of which roughly 36% are trucks.

How long is I-15 (SR-15) Sbl over SR-273?

The structure is 188 ft (57.3 m) long with a longest span of 108 ft (32.9 m) and a deck 81 ft wide.

Who owns I-15 (SR-15) Sbl over SR-273?

It is owned by the State Highway Agency.