US Bridges

I-70 (SR-70) Wbl over UPRR Potash Spur

Fair

Grand County, Utah · At Crescent Jct. Intchg · Structure no. 4F 362

Built
1976
49 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
135 ft
3 main spans
Daily traffic
10,152
2023 count
Owner
State
State Highway Agency

About this bridge

I-70 (SR-70) Wbl over UPRR Potash Spur is a prestressed concrete continuous stringer/multi-beam or girder carrying I-70 (SR-70) Wbl over UPRR Potash Spur in Grand County, Utah. It was built in 1976, so it is 49 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 10,152 vehicles a day, roughly 45% of them trucks, projected to reach 12,182 by 2043. The structure is 135 ft (41.1 m) long and 62 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
CrossesUPRR Potash Spur
LocationAt Crescent Jct. Intchg
RouteInterstate 70
CountyGrand County
StateUtah
Coordinates38.94352, -109.81106
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length135 ft (41.1 m)
Longest span46 ft (14.1 m)
Deck width62 ft (18.9 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,152 (2023)
Projected traffic12,182 by 2043
Trucks45%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 UPRR Potash Spur built?

It was built in 1976, making it 49 years old in 2025.

What condition is I-70 (SR-70) Wbl over UPRR Potash Spur 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 2023.

How much traffic does I-70 (SR-70) Wbl over UPRR Potash Spur carry?

About 10,152 vehicles per day (2023 count), of which roughly 45% are trucks.

How long is I-70 (SR-70) Wbl over UPRR Potash Spur?

The structure is 135 ft (41.1 m) long with a longest span of 46 ft (14.1 m) and a deck 62 ft wide.

Who owns I-70 (SR-70) Wbl over UPRR Potash Spur?

It is owned by the State Highway Agency.