US Bridges

I 84 Wbl over I 84B;UPRR;HEYBURN Ic

Fair

Minidoka County, Idaho · 2.5 E. Burley · Structure no. 000000000016365

Built
1961
64 years old, rebuilt 1980
Condition
Fair
inspected August 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
678 ft
9 main spans
Daily traffic
10,500
2023 count
Owner
State
State Highway Agency

About this bridge

I 84 Wbl over I 84B;UPRR;HEYBURN Ic is a prestressed concrete stringer/multi-beam or girder carrying I 84 Wbl over I 84B;UPRR;HEYBURN Ic in Minidoka County, Idaho. It was built in 1961 and reconstructed in 1980, so it is 64 years old, older than the Idaho average of 45.3 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 10,500 vehicles a day, roughly 28% of them trucks, projected to reach 15,750 by 2042. The structure is 678 ft (206.7 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 84 Wbl
CrossesI 84B;UPRR;HEYBURN Ic
Location2.5 E. Burley
RouteInterstate 84
CountyMinidoka County
StateIdaho
Coordinates42.56895, -113.73832
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length678 ft (206.7 m)
Longest span86 ft (26.2 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2023)
Projected traffic15,750 by 2042
Trucks28%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway, waterway and railroad
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$7.3 million (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I 84 Wbl over I 84B;UPRR;HEYBURN Ic built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1980.

What condition is I 84 Wbl over I 84B;UPRR;HEYBURN Ic 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 August 2022.

How much traffic does I 84 Wbl over I 84B;UPRR;HEYBURN Ic carry?

About 10,500 vehicles per day (2023 count), of which roughly 28% are trucks.

How long is I 84 Wbl over I 84B;UPRR;HEYBURN Ic?

The structure is 678 ft (206.7 m) long with a longest span of 86 ft (26.2 m) and a deck 36 ft wide.

Who owns I 84 Wbl over I 84B;UPRR;HEYBURN Ic?

It is owned by the State Highway Agency.