US Bridges

I-70 (SR-70) Wbl over 500 S0UTH St. Richfield

Fair

Sevier County, Utah · .7 Mi.No.So.Richfield Int · Structure no. 4F 534

Built
1988
37 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
104 ft
1 main span
Daily traffic
7,301
2023 count
Owner
State
State Highway Agency

About this bridge

I-70 (SR-70) Wbl over 500 S0UTH St. Richfield is a prestressed concrete stringer/multi-beam or girder carrying I-70 (SR-70) Wbl over 500 S0UTH St. Richfield 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 7,301 vehicles a day, roughly 30% of them trucks, projected to reach 8,761 by 2043. The structure is 104 ft (31.8 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-70 (SR-70) Wbl
Crosses500 S0UTH St. Richfield
Location.7 Mi.No.So.Richfield Int
RouteInterstate 70
CountySevier County
StateUtah
Coordinates38.76194, -112.10528
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.2 US tons
Inventory rating42.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length104 ft (31.8 m)
Longest span101 ft (30.9 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,301 (2023)
Projected traffic8,761 by 2043
Trucks30%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 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) Wbl over 500 S0UTH St. Richfield built?

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

What condition is I-70 (SR-70) Wbl over 500 S0UTH St. Richfield 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) Wbl over 500 S0UTH St. Richfield carry?

About 7,301 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is I-70 (SR-70) Wbl over 500 S0UTH St. Richfield?

The structure is 104 ft (31.8 m) long with a longest span of 101 ft (30.9 m) and a deck 44 ft wide.

Who owns I-70 (SR-70) Wbl over 500 S0UTH St. Richfield?

It is owned by the State Highway Agency.