US Bridges

I-70 (SR-70) over Lost Creek

Fair

Sevier County, Utah · 5.5 Mi.E.Of Sigurd Int. · Structure no. 0E2184

Built
1986
39 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
7,166
2017 count
Owner
State
State Highway Agency

About this bridge

I-70 (SR-70) over Lost Creek is a concrete continuous culvert carrying I-70 (SR-70) over Lost Creek in Sevier County, Utah. It was built in 1986, so it is 39 years old, younger 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 7,166 vehicles a day, roughly 36% of them trucks, projected to reach 8,599 by 2037. The structure is 30 ft (9 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesI-70 (SR-70)
CrossesLost Creek
Location5.5 Mi.E.Of Sigurd Int.
RouteInterstate 70
CountySevier County
StateUtah
Coordinates38.91311, -111.88583
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating106.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length30 ft (9 m)
Longest span13 ft (4.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,166 (2017)
Projected traffic8,599 by 2037
Trucks36%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Lost Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is I-70 (SR-70) over Lost Creek 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 June 2023.

How much traffic does I-70 (SR-70) over Lost Creek carry?

About 7,166 vehicles per day (2017 count), of which roughly 36% are trucks.

How long is I-70 (SR-70) over Lost Creek?

The structure is 30 ft (9 m) long with a longest span of 13 ft (4.1 m).

Who owns I-70 (SR-70) over Lost Creek?

It is owned by the State Highway Agency.