US Bridges

I-70 (SR-70) over South Cedar Wash

Fair

Sevier County, Utah · 6.5 Mi.N.No.Richfield Int · Structure no. 0E2289

Built
1988
37 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete Continuous
Length
42 ft
2 main spans
Daily traffic
10,111
2022 count
Owner
State
State Highway Agency

About this bridge

I-70 (SR-70) over South Cedar Wash is a concrete continuous culvert carrying I-70 (SR-70) over South Cedar Wash in Sevier County, Utah. It was built in 1988, so it is 37 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 10,111 vehicles a day, roughly 33% of them trucks, projected to reach 12,133 by 2042. The structure is 42 ft (12.8 m) long and 80 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesI-70 (SR-70)
CrossesSouth Cedar Wash
Location6.5 Mi.N.No.Richfield Int
RouteInterstate 70
CountySevier County
StateUtah
Coordinates38.85333, -111.99667
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 protection8 Very GoodNo problems noted.
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
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.9 US tons
Inventory rating53.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length42 ft (12.8 m)
Longest span20 ft (6.1 m)
Deck width80 ft (24.4 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,111 (2022)
Projected traffic12,133 by 2042
Trucks33%
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 South Cedar Wash built?

It was built in 1988, making it 37 years old in 2025.

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

How much traffic does I-70 (SR-70) over South Cedar Wash carry?

About 10,111 vehicles per day (2022 count), of which roughly 33% are trucks.

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

The structure is 42 ft (12.8 m) long with a longest span of 20 ft (6.1 m) and a deck 80 ft wide.

Who owns I-70 (SR-70) over South Cedar Wash?

It is owned by the State Highway Agency.