US Bridges

I 15 Nbl over Stp 7341; Center St. Ic.

Good

Bannock County, Idaho · In Pocatello · Structure no. 000000000011256

Built
2007
18 years old
Condition
Good
inspected June 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
138 ft
2 main spans
Daily traffic
13,250
2023 count
Owner
State
State Highway Agency

About this bridge

I 15 Nbl over Stp 7341; Center St. Ic. is a prestressed concrete box beam or girders - multiple carrying I 15 Nbl over Stp 7341; Center St. Ic. in Bannock County, Idaho. It was built in 2007, so it is 18 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,250 vehicles a day, roughly 15% of them trucks, projected to reach 19,875 by 2042. The structure is 138 ft (42.1 m) long and 62 ft wide.

Location

Open in Google Maps
CarriesI 15 Nbl
CrossesStp 7341; Center St. Ic.
LocationIn Pocatello
RouteInterstate 15
CountyBannock County
StateIdaho
Coordinates42.87536, -112.42482
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating38 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length138 ft (42.1 m)
Longest span74 ft (22.6 m)
Deck width62 ft (18.9 m)
Roadway width59 ft (18.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,250 (2023)
Projected traffic19,875 by 2042
Trucks15%
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 Stp 7341; Center St. Ic. built?

It was built in 2007, making it 18 years old in 2025.

What condition is I 15 Nbl over Stp 7341; Center St. 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 June 2021.

How much traffic does I 15 Nbl over Stp 7341; Center St. Ic. carry?

About 13,250 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is I 15 Nbl over Stp 7341; Center St. Ic.?

The structure is 138 ft (42.1 m) long with a longest span of 74 ft (22.6 m) and a deck 62 ft wide.

Who owns I 15 Nbl over Stp 7341; Center St. Ic.?

It is owned by the State Highway Agency.