US Bridges

SR-126 Int.X-Road over I-15 (SR-15)

Fair

Davis County, Utah · At the South Layton Int. · Structure no. 0C 986

Built
2011
14 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
213 ft
2 main spans
Daily traffic
23,146
2022 count
Owner
State
State Highway Agency

About this bridge

SR-126 Int.X-Road over I-15 (SR-15) is a steel continuous stringer/multi-beam or girder carrying SR-126 Int.X-Road over I-15 (SR-15) in Davis County, Utah. It was built in 2011, so it is 14 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 23,146 vehicles a day, roughly 10% of them trucks, projected to reach 27,775 by 2042. The structure is 213 ft (64.9 m) long and 266 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR-126 Int.X-Road
CrossesI-15 (SR-15)
LocationAt the South Layton Int.
RouteState Highway 126
CountyDavis County
StateUtah
Coordinates41.05639, -111.96056
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
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 rating41.8 US tons
Inventory rating32.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length213 ft (64.9 m)
Longest span108 ft (32.9 m)
Deck width266 ft (81.1 m)
Roadway width132 ft (40.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,146 (2022)
Projected traffic27,775 by 2042
Trucks10%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

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 SR-126 Int.X-Road over I-15 (SR-15) built?

It was built in 2011, making it 14 years old in 2025.

What condition is SR-126 Int.X-Road over I-15 (SR-15) 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 SR-126 Int.X-Road over I-15 (SR-15) carry?

About 23,146 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is SR-126 Int.X-Road over I-15 (SR-15)?

The structure is 213 ft (64.9 m) long with a longest span of 108 ft (32.9 m) and a deck 266 ft wide.

Who owns SR-126 Int.X-Road over I-15 (SR-15)?

It is owned by the State Highway Agency.