US Bridges

I-70(SR-70)WBL over South Salt Wash

Fair

Emery County, Utah · At South Salt Wash Intchg · Structure no. 4F 558

Built
1989
36 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
97 ft
1 main span
Daily traffic
3,445
2014 count
Owner
State
State Highway Agency

About this bridge

I-70(SR-70)WBL over South Salt Wash is a prestressed concrete stringer/multi-beam or girder carrying I-70(SR-70)WBL over South Salt Wash in Emery County, Utah. It was built in 1989, so it is 36 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 3,445 vehicles a day, roughly 48% of them trucks, projected to reach 4,307 by 2034. The structure is 97 ft (29.7 m) long and 58 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesI-70(SR-70)WBL
CrossesSouth Salt Wash
LocationAt South Salt Wash Intchg
RouteInterstate 70
CountyEmery County
StateUtah
Coordinates38.84431, -111.0607
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length97 ft (29.7 m)
Longest span94 ft (28.8 m)
Deck width58 ft (17.8 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic3,445 (2014)
Projected traffic4,307 by 2034
Trucks48%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 South Salt Wash built?

It was built in 1989, making it 36 years old in 2025.

What condition is I-70(SR-70)WBL over South Salt 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 September 2024.

How much traffic does I-70(SR-70)WBL over South Salt Wash carry?

About 3,445 vehicles per day (2014 count), of which roughly 48% are trucks.

How long is I-70(SR-70)WBL over South Salt Wash?

The structure is 97 ft (29.7 m) long with a longest span of 94 ft (28.8 m) and a deck 58 ft wide.

Who owns I-70(SR-70)WBL over South Salt Wash?

It is owned by the State Highway Agency.