US Bridges

I-70 (SR-70) over Solitude Wash

Fair

Grand County, Utah · 11 Mi.East of Green River · Structure no. 0E2075

Built
1981
44 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
34 ft
2 main spans
Daily traffic
10,241
2021 count
Owner
State
State Highway Agency

About this bridge

I-70 (SR-70) over Solitude Wash is a concrete continuous culvert carrying I-70 (SR-70) over Solitude 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 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 10,241 vehicles a day, roughly 39% of them trucks, projected to reach 12,289 by 2041. The structure is 34 ft (10.5 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesI-70 (SR-70)
CrossesSolitude Wash
Location11 Mi.East of Green River
RouteInterstate 70
CountyGrand County
StateUtah
Coordinates38.93694, -110.02917
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
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating31.4 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length34 ft (10.5 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10,241 (2021)
Projected traffic12,289 by 2041
Trucks39%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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) over Solitude Wash built?

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

What condition is I-70 (SR-70) over Solitude 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) over Solitude Wash carry?

About 10,241 vehicles per day (2021 count), of which roughly 39% are trucks.

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

The structure is 34 ft (10.5 m) long with a longest span of 16 ft (4.9 m).

Who owns I-70 (SR-70) over Solitude Wash?

It is owned by the State Highway Agency.