US Bridges

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

Fair

Grand County, Utah · West Water Interchange · Structure no. 0F 285

Built
1972
53 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
258 ft
4 main spans
Daily traffic
18
2022 count
Owner
State
State Highway Agency

About this bridge

Co.Rd. Intchg.X-Rd over I-70 (SR-70) is a prestressed concrete stringer/multi-beam or girder carrying Co.Rd. Intchg.X-Rd over I-70 (SR-70) in Grand County, Utah. It was built in 1972, so it is 53 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 18 vehicles a day, roughly 50% of them trucks, projected to reach 22 by 2042. The structure is 258 ft (78.7 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesCo.Rd. Intchg.X-Rd
CrossesI-70 (SR-70)
LocationWest Water Interchange
RouteInterstate 70
CountyGrand County
StateUtah
Coordinates39.11401, -109.18419
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 alignment6: Equal to present minimum criteria
Operating rating47.8 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length258 ft (78.7 m)
Longest span98 ft (29.9 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18 (2022)
Projected traffic22 by 2042
Trucks50%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemYes

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 Co.Rd. Intchg.X-Rd over I-70 (SR-70) built?

It was built in 1972, making it 53 years old in 2025.

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

About 18 vehicles per day (2022 count), of which roughly 50% are trucks.

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

The structure is 258 ft (78.7 m) long with a longest span of 98 ft (29.9 m) and a deck 34 ft wide.

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

It is owned by the State Highway Agency.