US Bridges

I-84 (SR-84) Ebl over Co.Rd.(iowa String Rd)

Fair

Box Elder County, Utah · South Tremonton · Structure no. 2F 184

Built
1972
53 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
126 ft
3 main spans
Daily traffic
15,490
2021 count
Owner
State
State Highway Agency

About this bridge

I-84 (SR-84) Ebl over Co.Rd.(iowa String Rd) is a prestressed concrete stringer/multi-beam or girder carrying I-84 (SR-84) Ebl over Co.Rd.(iowa String Rd) in Box Elder County, Utah. It was built in 1972, so it is 53 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 15,490 vehicles a day, roughly 35% of them trucks, projected to reach 18,588 by 2041. The structure is 126 ft (38.5 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-84 (SR-84) Ebl
CrossesCo.Rd.(iowa String Rd)
LocationSouth Tremonton
RouteInterstate 84
CountyBox Elder County
StateUtah
Coordinates41.69889, -112.18083
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 rating46.4 US tons
Inventory rating27.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length126 ft (38.5 m)
Longest span61 ft (18.6 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,490 (2021)
Projected traffic18,588 by 2041
Trucks35%
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-84 (SR-84) Ebl over Co.Rd.(iowa String Rd) built?

It was built in 1972, making it 53 years old in 2025.

What condition is I-84 (SR-84) Ebl over Co.Rd.(iowa String Rd) 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 April 2023.

How much traffic does I-84 (SR-84) Ebl over Co.Rd.(iowa String Rd) carry?

About 15,490 vehicles per day (2021 count), of which roughly 35% are trucks.

How long is I-84 (SR-84) Ebl over Co.Rd.(iowa String Rd)?

The structure is 126 ft (38.5 m) long with a longest span of 61 ft (18.6 m) and a deck 44 ft wide.

Who owns I-84 (SR-84) Ebl over Co.Rd.(iowa String Rd)?

It is owned by the State Highway Agency.