US Bridges

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

Fair

Grand County, Utah · 15 Mi.East of Green River · Structure no. 4F 357

Built
1981
44 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
118 ft
1 main span
Daily traffic
10,241
2023 count
Owner
State
State Highway Agency

About this bridge

I-70 (SR-70 Wbl) over Floy Wash is a prestressed concrete stringer/multi-beam or girder carrying I-70 (SR-70 Wbl) over Floy Wash in Grand County, Utah. It was built in 1981, so it is 44 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 10,241 vehicles a day, roughly 39% of them trucks, projected to reach 12,289 by 2043. The structure is 118 ft (36 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-70 (SR-70 Wbl)
CrossesFloy Wash
Location15 Mi.East of Green River
RouteInterstate 70
CountyGrand County
StateUtah
Coordinates38.92088, -109.9474
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating41.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length118 ft (36 m)
Longest span115 ft (34.9 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,241 (2023)
Projected traffic12,289 by 2043
Trucks39%
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 Floy Wash built?

It was built in 1981, making it 44 years old in 2025.

What condition is I-70 (SR-70 Wbl) over Floy Wash 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 October 2023.

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

About 10,241 vehicles per day (2023 count), of which roughly 39% are trucks.

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

The structure is 118 ft (36 m) long with a longest span of 115 ft (34.9 m) and a deck 44 ft wide.

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

It is owned by the State Highway Agency.