US Bridges

I-70 (SR-70) over Mill Creek

Fair

Sevier County, Utah · 0.2 Mi.West Belknap Int. · Structure no. 0E2141

Built
1982
43 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
5,328
2022 count
Owner
State
State Highway Agency

About this bridge

I-70 (SR-70) over Mill Creek is a concrete culvert carrying I-70 (SR-70) over Mill Creek in Sevier County, Utah. It was built in 1982, so it is 43 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 5,328 vehicles a day, roughly 46% of them trucks, projected to reach 6,394 by 2042. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesI-70 (SR-70)
CrossesMill Creek
Location0.2 Mi.West Belknap Int.
RouteInterstate 70
CountySevier County
StateUtah
Coordinates38.56481, -112.35569
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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating106.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length25 ft (7.6 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,328 (2022)
Projected traffic6,394 by 2042
Trucks46%
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 Mill Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is I-70 (SR-70) over Mill 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 May 2023.

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

About 5,328 vehicles per day (2022 count), of which roughly 46% are trucks.

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

The structure is 25 ft (7.6 m) long with a longest span of 20 ft (6.1 m).

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

It is owned by the State Highway Agency.