US Bridges

I 86 Ebl over Uprr;chubbuck Overpass

Fair

Bannock County, Idaho · 0.4 E. Chubbuck · Structure no. 000000000010900

Built
1963
62 years old
Condition
Fair
inspected August 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
170 ft
3 main spans
Daily traffic
11,750
2023 count
Owner
State
State Highway Agency

About this bridge

I 86 Ebl over Uprr;chubbuck Overpass is a steel stringer/multi-beam or girder carrying I 86 Ebl over Uprr;chubbuck Overpass in Bannock County, Idaho. It was built in 1963, so it is 62 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 11,750 vehicles a day, roughly 15% of them trucks, projected to reach 17,625 by 2042. The structure is 170 ft (51.8 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 86 Ebl
CrossesUprr;chubbuck Overpass
Location0.4 E. Chubbuck
RouteInterstate 86
CountyBannock County
StateIdaho
Coordinates42.91258, -112.45906
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length170 ft (51.8 m)
Longest span71 ft (21.6 m)
Deck width53 ft (16.2 m)
Roadway width51 ft (15.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,750 (2023)
Projected traffic17,625 by 2042
Trucks15%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 86 Ebl over Uprr;chubbuck Overpass built?

It was built in 1963, making it 62 years old in 2025.

What condition is I 86 Ebl over Uprr;chubbuck Overpass 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 86 Ebl over Uprr;chubbuck Overpass carry?

About 11,750 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is I 86 Ebl over Uprr;chubbuck Overpass?

The structure is 170 ft (51.8 m) long with a longest span of 71 ft (21.6 m) and a deck 53 ft wide.

Who owns I 86 Ebl over Uprr;chubbuck Overpass?

It is owned by the State Highway Agency.