US Bridges

US-6 (SR-6) over Utah Railway Tracks

Fair

Carbon County, Utah · 1.2 Mi.North of Helper · Structure no. 0C 312

Built
1959
66 years old, rebuilt 2004
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
231 ft
3 main spans
Daily traffic
11,773
2022 count
Owner
State
State Highway Agency

About this bridge

US-6 (SR-6) over Utah Railway Tracks is a steel continuous stringer/multi-beam or girder carrying US-6 (SR-6) over Utah Railway Tracks in Carbon County, Utah. It was built in 1959 and reconstructed in 2004, so it is 66 years old, older 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 5 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 11,773 vehicles a day, roughly 48% of them trucks, projected to reach 14,128 by 2042. The structure is 231 ft (70.4 m) long and 42 ft wide. If it were closed, the detour would be 60.3 mi (97 km).

Location

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CarriesUS-6 (SR-6)
CrossesUtah Railway Tracks
Location1.2 Mi.North of Helper
RouteU.S. Route 6
CountyCarbon County
StateUtah
Coordinates39.71048, -110.86827
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55.7 US tons
Inventory rating37.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length231 ft (70.4 m)
Longest span78 ft (23.8 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,773 (2022)
Projected traffic14,128 by 2042
Trucks48%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed60.3 mi (97 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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 US-6 (SR-6) over Utah Railway Tracks built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2004.

What condition is US-6 (SR-6) over Utah Railway Tracks 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 US-6 (SR-6) over Utah Railway Tracks carry?

About 11,773 vehicles per day (2022 count), of which roughly 48% are trucks.

How long is US-6 (SR-6) over Utah Railway Tracks?

The structure is 231 ft (70.4 m) long with a longest span of 78 ft (23.8 m) and a deck 42 ft wide.

Who owns US-6 (SR-6) over Utah Railway Tracks?

It is owned by the State Highway Agency.