US Bridges

I 15 Nbl over Stc 1755; Arimo Rd.Ic

Good

Bannock County, Idaho · 5.5 S. Mccammon · Structure no. 000000000011101

Built
2022
3 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
108 ft
1 main span
Daily traffic
6,500
2023 count
Owner
State
State Highway Agency

About this bridge

I 15 Nbl over Stc 1755; Arimo Rd.Ic is a prestressed concrete stringer/multi-beam or girder carrying I 15 Nbl over Stc 1755; Arimo Rd.Ic in Bannock County, Idaho. It was built in 2022, so it is 3 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 6,500 vehicles a day, roughly 23% of them trucks, projected to reach 9,750 by 2042. The structure is 108 ft (32.9 m) long and 50 ft wide.

Location

Open in Google Maps
CarriesI 15 Nbl
CrossesStc 1755; Arimo Rd.Ic
Location5.5 S. Mccammon
RouteInterstate 15
CountyBannock County
StateIdaho
Coordinates42.56683, -112.17908
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 rating63.6 US tons
Inventory rating42.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length108 ft (32.9 m)
Longest span108 ft (32.9 m)
Deck width50 ft (15.3 m)
Roadway width47 ft (14.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,500 (2023)
Projected traffic9,750 by 2042
Trucks23%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 Nbl over Stc 1755; Arimo Rd.Ic built?

It was built in 2022, making it 3 years old in 2025.

What condition is I 15 Nbl over Stc 1755; Arimo Rd.Ic 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 Nbl over Stc 1755; Arimo Rd.Ic carry?

About 6,500 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is I 15 Nbl over Stc 1755; Arimo Rd.Ic?

The structure is 108 ft (32.9 m) long with a longest span of 108 ft (32.9 m) and a deck 50 ft wide.

Who owns I 15 Nbl over Stc 1755; Arimo Rd.Ic?

It is owned by the State Highway Agency.