US Bridges

I-70 (SR-70) Wbl over Unnamed Wash

Good

Grand County, Utah · 10 Mi.E. Yellowcat Inter. · Structure no. 4V1223

Built
1974
51 years old
Condition
Good
inspected September 2023
Type
Culvert
Steel
Length
30 ft
2 main spans
Daily traffic
11,127
2023 count
Owner
State
State Highway Agency

About this bridge

I-70 (SR-70) Wbl over Unnamed Wash is a steel culvert carrying I-70 (SR-70) Wbl over Unnamed Wash in Grand County, Utah. It was built in 1974, so it is 51 years old, older 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 11,127 vehicles a day, roughly 48% of them trucks, projected to reach 13,352 by 2043. The structure is 30 ft (9.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

No coordinates are recorded for this structure.

CarriesI-70 (SR-70) Wbl
CrossesUnnamed Wash
Location10 Mi.E. Yellowcat Inter.
RouteInterstate 70
CountyGrand County
StateUtah
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating106.5 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 15
Structure length30 ft (9.2 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,127 (2023)
Projected traffic13,352 by 2043
Trucks48%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 Unnamed Wash built?

It was built in 1974, making it 51 years old in 2025.

What condition is I-70 (SR-70) Wbl over Unnamed 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 2023.

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

About 11,127 vehicles per day (2023 count), of which roughly 48% are trucks.

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

The structure is 30 ft (9.2 m) long with a longest span of 13 ft (4 m).

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

It is owned by the State Highway Agency.