US Bridges

US 30 ;w. Poky Ic over I 86;WEST Pocatello Ic

Fair

Power County, Idaho · 3.2 W. Chubbuck · Structure no. 000000000013690

Built
1968
57 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
283 ft
5 main spans
Daily traffic
2,300
2023 count
Owner
State
State Highway Agency

About this bridge

US 30 ;w. Poky Ic over I 86;WEST Pocatello Ic is a prestressed concrete stringer/multi-beam or girder carrying US 30 ;w. Poky Ic over I 86;WEST Pocatello Ic in Power County, Idaho. It was built in 1968, so it is 57 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 5 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 2,300 vehicles a day, roughly 24% of them trucks, projected to reach 3,450 by 2042. The structure is 283 ft (86.3 m) long and 69 ft wide.

Location

Open in Google Maps
CarriesUS 30 ;w. Poky Ic
CrossesI 86;WEST Pocatello Ic
Location3.2 W. Chubbuck
RouteU.S. Route 30
CountyPower County
StateIdaho
Coordinates42.91217, -112.52883
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating26 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length283 ft (86.3 m)
Longest span59 ft (18 m)
Deck width69 ft (21.1 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deck18 ft (5.4 m)

Traffic and service

Average daily traffic2,300 (2023)
Projected traffic3,450 by 2042
Trucks24%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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$5.3 million (2018 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 30 ;w. Poky Ic over I 86;WEST Pocatello Ic built?

It was built in 1968, making it 57 years old in 2025.

What condition is US 30 ;w. Poky Ic over I 86;WEST Pocatello 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 July 2024.

How much traffic does US 30 ;w. Poky Ic over I 86;WEST Pocatello Ic carry?

About 2,300 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is US 30 ;w. Poky Ic over I 86;WEST Pocatello Ic?

The structure is 283 ft (86.3 m) long with a longest span of 59 ft (18 m) and a deck 69 ft wide.

Who owns US 30 ;w. Poky Ic over I 86;WEST Pocatello Ic?

It is owned by the State Highway Agency.