US Bridges

County Road over Spring Canyon Wash

FairPosted for load

Carbon County, Utah · 3.5 Miles West of Helper · Structure no. 007021D

Built
1905
120 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete
Length
31 ft
1 main span
Daily traffic
32
2010 count
Owner
County
County Highway Agency

About this bridge

County Road over Spring Canyon Wash is a concrete slab carrying County Road over Spring Canyon Wash in Carbon County, Utah. It was built in 1905, so it is 120 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. Its operating status is: posted for load restriction.

It carries about 32 vehicles a day, roughly 5% of them trucks, projected to reach 38 by 2030. The structure is 31 ft (9.4 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesCounty Road
CrossesSpring Canyon Wash
Location3.5 Miles West of Helper
RouteCounty Highway 0
CountyCarbon County
StateUtah
Coordinates39.69941, -110.93637
Functional classRural Local

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length31 ft (9.4 m)
Longest span29 ft (8.8 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32 (2010)
Projected traffic38 by 2030
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was County Road over Spring Canyon Wash built?

It was built in 1905, making it 120 years old in 2025.

What condition is County Road over Spring Canyon Wash 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 2024.

How much traffic does County Road over Spring Canyon Wash carry?

About 32 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is County Road over Spring Canyon Wash?

The structure is 31 ft (9.4 m) long with a longest span of 29 ft (8.8 m) and a deck 27 ft wide.

Who owns County Road over Spring Canyon Wash?

It is owned by the County Highway Agency.