US Bridges

I-80 (SR-80) Wbl over Skull Valley Drain

Fair

Tooele County, Utah · 3.6 Miles East of Delle · Structure no. 4C 239

Built
1948
77 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
1 main span
Daily traffic
8,060
2014 count
Owner
State
State Highway Agency

About this bridge

I-80 (SR-80) Wbl over Skull Valley Drain is a steel stringer/multi-beam or girder carrying I-80 (SR-80) Wbl over Skull Valley Drain in Tooele County, Utah. It was built in 1948, so it is 77 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 8,060 vehicles a day, roughly 31% of them trucks, projected to reach 10,075 by 2034. The structure is 63 ft (19.3 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-80 (SR-80) Wbl
CrossesSkull Valley Drain
Location3.6 Miles East of Delle
RouteInterstate 80
CountyTooele County
StateUtah
Coordinates40.75308, -112.72192
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length63 ft (19.3 m)
Longest span60 ft (18.3 m)
Deck width46 ft (13.9 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,060 (2014)
Projected traffic10,075 by 2034
Trucks31%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-80 (SR-80) Wbl over Skull Valley Drain built?

It was built in 1948, making it 77 years old in 2025.

What condition is I-80 (SR-80) Wbl over Skull Valley Drain 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 2024.

How much traffic does I-80 (SR-80) Wbl over Skull Valley Drain carry?

About 8,060 vehicles per day (2014 count), of which roughly 31% are trucks.

How long is I-80 (SR-80) Wbl over Skull Valley Drain?

The structure is 63 ft (19.3 m) long with a longest span of 60 ft (18.3 m) and a deck 46 ft wide.

Who owns I-80 (SR-80) Wbl over Skull Valley Drain?

It is owned by the State Highway Agency.