US Bridges

I-15 (SR-15) Nbl over SR-228 Intchg. X-Road

Good

Washington County, Utah · North Leeds Interchange · Structure no. 1D 680

Built
1962
63 years old, rebuilt 2018
Condition
Good
inspected January 2023
Type
Tee Beam
Concrete Continuous
Length
120 ft
3 main spans
Daily traffic
31,827
2021 count
Owner
State
State Highway Agency

About this bridge

I-15 (SR-15) Nbl over SR-228 Intchg. X-Road is a concrete continuous tee beam carrying I-15 (SR-15) Nbl over SR-228 Intchg. X-Road in Washington County, Utah. It was built in 1962 and reconstructed in 2018, so it is 63 years old, older 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 31,827 vehicles a day, roughly 29% of them trucks, projected to reach 38,192 by 2041. The structure is 120 ft (36.7 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-15 (SR-15) Nbl
CrossesSR-228 Intchg. X-Road
LocationNorth Leeds Interchange
RouteInterstate 15
CountyWashington County
StateUtah
Coordinates37.2439, -113.35326
Functional classRural 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 inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating34.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length120 ft (36.7 m)
Longest span38 ft (11.6 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,827 (2021)
Projected traffic38,192 by 2041
Trucks29%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 SR-228 Intchg. X-Road built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2018.

What condition is I-15 (SR-15) Nbl over SR-228 Intchg. X-Road 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 January 2023.

How much traffic does I-15 (SR-15) Nbl over SR-228 Intchg. X-Road carry?

About 31,827 vehicles per day (2021 count), of which roughly 29% are trucks.

How long is I-15 (SR-15) Nbl over SR-228 Intchg. X-Road?

The structure is 120 ft (36.7 m) long with a longest span of 38 ft (11.6 m) and a deck 41 ft wide.

Who owns I-15 (SR-15) Nbl over SR-228 Intchg. X-Road?

It is owned by the State Highway Agency.