US Bridges

I-70 (SR-70) Wbl over Bitter Seep Wash

Good

Emery County, Utah · W. of S. Salt Wash Intchg · Structure no. 4F 556

Built
1989
36 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
81 ft
1 main span
Daily traffic
3,355
2014 count
Owner
State
State Highway Agency

About this bridge

I-70 (SR-70) Wbl over Bitter Seep Wash is a prestressed concrete stringer/multi-beam or girder carrying I-70 (SR-70) Wbl over Bitter Seep 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,355 vehicles a day, roughly 49% of them trucks, projected to reach 4,194 by 2034. The structure is 81 ft (24.8 m) long and 54 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesI-70 (SR-70) Wbl
CrossesBitter Seep Wash
LocationW. of S. Salt Wash Intchg
RouteInterstate 70
CountyEmery County
StateUtah
Coordinates38.83939, -111.07222
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length81 ft (24.8 m)
Longest span78 ft (23.9 m)
Deck width54 ft (16.4 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,355 (2014)
Projected traffic4,194 by 2034
Trucks49%
Lanes on structure2
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 Bitter Seep Wash built?

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

What condition is I-70 (SR-70) Wbl over Bitter Seep Wash in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does I-70 (SR-70) Wbl over Bitter Seep Wash carry?

About 3,355 vehicles per day (2014 count), of which roughly 49% are trucks.

How long is I-70 (SR-70) Wbl over Bitter Seep Wash?

The structure is 81 ft (24.8 m) long with a longest span of 78 ft (23.9 m) and a deck 54 ft wide.

Who owns I-70 (SR-70) Wbl over Bitter Seep Wash?

It is owned by the State Highway Agency.