US Bridges

I-70 (SR-70) Wbl over US-89 (SR-89)

Fair

Sevier County, Utah · Sevier Junction Interchg. · Structure no. 4F 444

Built
1985
40 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
101 ft
1 main span
Daily traffic
5,894
2023 count
Owner
State
State Highway Agency

About this bridge

I-70 (SR-70) Wbl over US-89 (SR-89) is a prestressed concrete stringer/multi-beam or girder carrying I-70 (SR-70) Wbl over US-89 (SR-89) in Sevier County, Utah. It was built in 1985, so it is 40 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 5,894 vehicles a day, roughly 47% of them trucks, projected to reach 7,073 by 2043. The structure is 101 ft (30.9 m) long and 68 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
CrossesUS-89 (SR-89)
LocationSevier Junction Interchg.
RouteInterstate 70
CountySevier County
StateUtah
Coordinates38.6, -112.25417
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.5 US tons
Inventory rating47.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length101 ft (30.9 m)
Longest span99 ft (30.1 m)
Deck width68 ft (20.6 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,894 (2023)
Projected traffic7,073 by 2043
Trucks47%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
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 US-89 (SR-89) built?

It was built in 1985, making it 40 years old in 2025.

What condition is I-70 (SR-70) Wbl over US-89 (SR-89) 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 May 2023.

How much traffic does I-70 (SR-70) Wbl over US-89 (SR-89) carry?

About 5,894 vehicles per day (2023 count), of which roughly 47% are trucks.

How long is I-70 (SR-70) Wbl over US-89 (SR-89)?

The structure is 101 ft (30.9 m) long with a longest span of 99 ft (30.1 m) and a deck 68 ft wide.

Who owns I-70 (SR-70) Wbl over US-89 (SR-89)?

It is owned by the State Highway Agency.