US Bridges

6th East over I-15 (SR-15) Nbl and Sbl

Good

Utah County, Utah · In Lehi · Structure no. 0F 882

Built
2018
7 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
229 ft
2 main spans
Daily traffic
5,000
2012 count
Owner
State
State Highway Agency

About this bridge

6th East over I-15 (SR-15) Nbl and Sbl is a prestressed concrete stringer/multi-beam or girder carrying 6th East over I-15 (SR-15) Nbl and Sbl in Utah County, Utah. It was built in 2018, so it is 7 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 5,000 vehicles a day, projected to reach 7,000 by 2034. The structure is 229 ft (69.9 m) long and 49 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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Carries6th East
CrossesI-15 (SR-15) Nbl and Sbl
LocationIn Lehi
RouteCity Street 2930
CountyUtah County
StateUtah
Coordinates40.39562, -111.84015
Functional classUrban Local

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 inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length229 ft (69.9 m)
Longest span110 ft (33.4 m)
Deck width49 ft (14.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic5,000 (2012)
Projected traffic7,000 by 2034
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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 6th East over I-15 (SR-15) Nbl and Sbl built?

It was built in 2018, making it 7 years old in 2025.

What condition is 6th East over I-15 (SR-15) Nbl and Sbl 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 February 2025.

How much traffic does 6th East over I-15 (SR-15) Nbl and Sbl carry?

About 5,000 vehicles per day (2012 count).

How long is 6th East over I-15 (SR-15) Nbl and Sbl?

The structure is 229 ft (69.9 m) long with a longest span of 110 ft (33.4 m) and a deck 49 ft wide.

Who owns 6th East over I-15 (SR-15) Nbl and Sbl?

It is owned by the State Highway Agency.