US Bridges

US-6 (SR-6) over Union Pacific Railroad

Good

Utah County, Utah · 1.1 Mi. West of Santaquin · Structure no. 0F 722

Built
2005
20 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
100 ft
1 main span
Daily traffic
4,295
2014 count
Owner
State
State Highway Agency

About this bridge

US-6 (SR-6) over Union Pacific Railroad is a concrete stringer/multi-beam or girder carrying US-6 (SR-6) over Union Pacific Railroad in Utah County, Utah. It was built in 2005, so it is 20 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 4,295 vehicles a day, roughly 26% of them trucks, projected to reach 5,369 by 2034. The structure is 100 ft (30.6 m) long and 57 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesUS-6 (SR-6)
CrossesUnion Pacific Railroad
Location1.1 Mi. West of Santaquin
RouteU.S. Route 6
StateUtah
Coordinates39.98056, -111.80361
Functional classUrban Minor Arterial

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.
Substructure8 Very GoodNo problems noted.
Last inspectionMarch 2023
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 rating35.7 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length100 ft (30.6 m)
Longest span97 ft (29.7 m)
Deck width57 ft (17.4 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,295 (2014)
Projected traffic5,369 by 2034
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed5 mi (8 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 US-6 (SR-6) over Union Pacific Railroad built?

It was built in 2005, making it 20 years old in 2025.

What condition is US-6 (SR-6) over Union Pacific Railroad 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 March 2023.

How much traffic does US-6 (SR-6) over Union Pacific Railroad carry?

About 4,295 vehicles per day (2014 count), of which roughly 26% are trucks.

How long is US-6 (SR-6) over Union Pacific Railroad?

The structure is 100 ft (30.6 m) long with a longest span of 97 ft (29.7 m) and a deck 57 ft wide.

Who owns US-6 (SR-6) over Union Pacific Railroad?

It is owned by the State Highway Agency.