US Bridges

I-70 (SR-70) Wbl over Co.Rd. Intchg.X-Road.

Fair

Grand County, Utah · West Water Interchange · Structure no. 4F 326

Built
1971
54 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
139 ft
3 main spans
Daily traffic
6,810
2014 count
Owner
State
State Highway Agency

About this bridge

I-70 (SR-70) Wbl over Co.Rd. Intchg.X-Road. is a prestressed concrete stringer/multi-beam or girder carrying I-70 (SR-70) Wbl over Co.Rd. Intchg.X-Road. in Grand County, Utah. It was built in 1971, so it is 54 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 5 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 6,810 vehicles a day, roughly 50% of them trucks, projected to reach 8,513 by 2034. The structure is 139 ft (42.5 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesI-70 (SR-70) Wbl
CrossesCo.Rd. Intchg.X-Road.
LocationWest Water Interchange
RouteInterstate 70
CountyGrand County
StateUtah
Coordinates39.17452, -109.12764
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 rating39.2 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length139 ft (42.5 m)
Longest span64 ft (19.4 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,810 (2014)
Projected traffic8,513 by 2034
Trucks50%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 Co.Rd. Intchg.X-Road. built?

It was built in 1971, making it 54 years old in 2025.

What condition is I-70 (SR-70) Wbl over Co.Rd. Intchg.X-Road. 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 Co.Rd. Intchg.X-Road. carry?

About 6,810 vehicles per day (2014 count), of which roughly 50% are trucks.

How long is I-70 (SR-70) Wbl over Co.Rd. Intchg.X-Road.?

The structure is 139 ft (42.5 m) long with a longest span of 64 ft (19.4 m) and a deck 44 ft wide.

Who owns I-70 (SR-70) Wbl over Co.Rd. Intchg.X-Road.?

It is owned by the State Highway Agency.