US Bridges

I-15SB OFF-RP.-US6 over UPRR and Williams Lane

Good

Utah County, Utah · At US-6 Moark Interchg. · Structure no. 3F 834

Built
2012
13 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
133 ft
1 main span
Daily traffic
8,141
2012 count
Owner
State
State Highway Agency

About this bridge

I-15SB OFF-RP.-US6 over UPRR and Williams Lane is a prestressed concrete stringer/multi-beam or girder carrying I-15SB OFF-RP.-US6 over UPRR and Williams Lane in Utah County, Utah. It was built in 2012, so it is 13 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 8,141 vehicles a day, roughly 25% of them trucks, projected to reach 10,176 by 2032. The structure is 133 ft (40.5 m) long and 55 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesI-15SB OFF-RP.-US6
CrossesUPRR and Williams Lane
LocationAt US-6 Moark Interchg.
RouteInterstate 15
CountyUtah County
StateUtah
Coordinates40.13284, -111.64725
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length133 ft (40.5 m)
Longest span126 ft (38.3 m)
Deck width55 ft (16.7 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,141 (2012)
Projected traffic10,176 by 2032
Trucks25%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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 I-15SB OFF-RP.-US6 over UPRR and Williams Lane built?

It was built in 2012, making it 13 years old in 2025.

What condition is I-15SB OFF-RP.-US6 over UPRR and Williams Lane 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 September 2024.

How much traffic does I-15SB OFF-RP.-US6 over UPRR and Williams Lane carry?

About 8,141 vehicles per day (2012 count), of which roughly 25% are trucks.

How long is I-15SB OFF-RP.-US6 over UPRR and Williams Lane?

The structure is 133 ft (40.5 m) long with a longest span of 126 ft (38.3 m) and a deck 55 ft wide.

Who owns I-15SB OFF-RP.-US6 over UPRR and Williams Lane?

It is owned by the State Highway Agency.