US Bridges

Airport Road over I 86 Eb-Wb;airport Ic

Poor

Power County, Idaho · 5.7 W. Chubbuck · Structure no. 000000000023645

Built
1968
57 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
312 ft
5 main spans
Daily traffic
1,300
2023 count
Owner
State
State Highway Agency

About this bridge

Airport Road over I 86 Eb-Wb;airport Ic is a prestressed concrete stringer/multi-beam or girder carrying Airport Road over I 86 Eb-Wb;airport 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,300 vehicles a day, projected to reach 1,950 by 2042. The structure is 312 ft (95.1 m) long and 33 ft wide.

Location

Open in Google Maps
CarriesAirport Road
CrossesI 86 Eb-Wb;airport Ic
Location5.7 W. Chubbuck
RouteCounty Highway 0
CountyPower County
StateIdaho
Coordinates42.90172, -112.57617
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length312 ft (95.1 m)
Longest span71 ft (21.6 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2023)
Projected traffic1,950 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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$35.2 million (2020 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Airport Road over I 86 Eb-Wb;airport Ic built?

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

What condition is Airport Road over I 86 Eb-Wb;airport Ic in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does Airport Road over I 86 Eb-Wb;airport Ic carry?

About 1,300 vehicles per day (2023 count).

How long is Airport Road over I 86 Eb-Wb;airport Ic?

The structure is 312 ft (95.1 m) long with a longest span of 71 ft (21.6 m) and a deck 33 ft wide.

Who owns Airport Road over I 86 Eb-Wb;airport Ic?

It is owned by the State Highway Agency.