US Bridges

I-70 (SR-70) Wbl over County Road to Airport

Fair

Emery County, Utah · South of Green River · Structure no. 4F 447

Built
1984
41 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
101 ft
1 main span
Daily traffic
9,579
2023 count
Owner
State
State Highway Agency

About this bridge

I-70 (SR-70) Wbl over County Road to Airport is a prestressed concrete stringer/multi-beam or girder carrying I-70 (SR-70) Wbl over County Road to Airport in Emery County, Utah. It was built in 1984, so it is 41 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 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 9,579 vehicles a day, roughly 39% of them trucks, projected to reach 11,495 by 2043. The structure is 101 ft (30.7 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-70 (SR-70) Wbl
CrossesCounty Road to Airport
LocationSouth of Green River
RouteInterstate 70
CountyEmery County
StateUtah
Coordinates38.98432, -110.16444
Functional classRural Principal Arterial - Interstate

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length101 ft (30.7 m)
Longest span98 ft (29.8 m)
Deck width44 ft (13.5 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic9,579 (2023)
Projected traffic11,495 by 2043
Trucks39%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate 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 I-70 (SR-70) Wbl over County Road to Airport built?

It was built in 1984, making it 41 years old in 2025.

What condition is I-70 (SR-70) Wbl over County Road to Airport 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 October 2023.

How much traffic does I-70 (SR-70) Wbl over County Road to Airport carry?

About 9,579 vehicles per day (2023 count), of which roughly 39% are trucks.

How long is I-70 (SR-70) Wbl over County Road to Airport?

The structure is 101 ft (30.7 m) long with a longest span of 98 ft (29.8 m) and a deck 44 ft wide.

Who owns I-70 (SR-70) Wbl over County Road to Airport?

It is owned by the State Highway Agency.