US Bridges

US-6 (SR-6) over No.Main St.In Helper

Fair

Carbon County, Utah · No. Main Street Overpass · Structure no. 0C 929

Built
2005
20 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
160 ft
1 main span
Daily traffic
11,126
2017 count
Owner
State
State Highway Agency

About this bridge

US-6 (SR-6) over No.Main St.In Helper is a steel stringer/multi-beam or girder carrying US-6 (SR-6) over No.Main St.In Helper in Carbon 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 fair condition with a lowest component rating of 6 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 11,126 vehicles a day, roughly 36% of them trucks, projected to reach 13,351 by 2037. The structure is 160 ft (48.9 m) long and 85 ft wide. If it were closed, the detour would be 67.1 mi (108 km).

Location

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CarriesUS-6 (SR-6)
CrossesNo.Main St.In Helper
LocationNo. Main Street Overpass
RouteU.S. Route 6
CountyCarbon County
StateUtah
Coordinates39.69172, -110.85807
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103.2 US tons
Inventory rating57.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length160 ft (48.9 m)
Longest span157 ft (48 m)
Deck width85 ft (25.8 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,126 (2017)
Projected traffic13,351 by 2037
Trucks36%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed67.1 mi (108 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 No.Main St.In Helper built?

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

What condition is US-6 (SR-6) over No.Main St.In Helper 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 August 2023.

How much traffic does US-6 (SR-6) over No.Main St.In Helper carry?

About 11,126 vehicles per day (2017 count), of which roughly 36% are trucks.

How long is US-6 (SR-6) over No.Main St.In Helper?

The structure is 160 ft (48.9 m) long with a longest span of 157 ft (48 m) and a deck 85 ft wide.

Who owns US-6 (SR-6) over No.Main St.In Helper?

It is owned by the State Highway Agency.