US Bridges

I 15 Sbl over STP7041;CHUBBUCK Road

Good

Bannock County, Idaho · 1.2 E Chubbuck · Structure no. 000000000021216

Built
2024
1 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
133 ft
1 main span
Daily traffic
19,250
2022 count
Owner
State
State Highway Agency

About this bridge

I 15 Sbl over STP7041;CHUBBUCK Road is a prestressed concrete stringer/multi-beam or girder carrying I 15 Sbl over STP7041;CHUBBUCK Road in Bannock County, Idaho. It was built in 2024, so it is 1 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 19,250 vehicles a day, roughly 17% of them trucks, projected to reach 30,910 by 2042. The structure is 133 ft (40.5 m) long and 71 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 15 Sbl
CrossesSTP7041;CHUBBUCK Road
Location1.2 E Chubbuck
RouteInterstate 15
StateIdaho
Coordinates42.92064, -112.44133
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.2 US tons
Inventory rating39.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length133 ft (40.5 m)
Longest span131 ft (39.9 m)
Deck width71 ft (21.6 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,250 (2022)
Projected traffic30,910 by 2042
Trucks17%
Lanes on structure3
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 15 Sbl over STP7041;CHUBBUCK Road built?

It was built in 2024, making it 1 years old in 2025.

What condition is I 15 Sbl over STP7041;CHUBBUCK Road in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does I 15 Sbl over STP7041;CHUBBUCK Road carry?

About 19,250 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is I 15 Sbl over STP7041;CHUBBUCK Road?

The structure is 133 ft (40.5 m) long with a longest span of 131 ft (39.9 m) and a deck 71 ft wide.

Who owns I 15 Sbl over STP7041;CHUBBUCK Road?

It is owned by the State Highway Agency.