US Bridges

I 86 Wbl over Leyshon Road Gs

Good

Power County, Idaho · 3.9 E. American Falls · Structure no. 000000000010805

Built
1959
66 years old
Condition
Good
inspected July 2024
Type
Frame
Concrete
Length
24 ft
1 main span
Daily traffic
6,500
2023 count
Owner
State
State Highway Agency

About this bridge

I 86 Wbl over Leyshon Road Gs is a concrete frame carrying I 86 Wbl over Leyshon Road Gs in Power County, Idaho. It was built in 1959, so it is 66 years old, older 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 6,500 vehicles a day, roughly 19% of them trucks, projected to reach 9,750 by 2042. The structure is 24 ft (7.3 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 86 Wbl
CrossesLeyshon Road Gs
Location3.9 E. American Falls
RouteInterstate 86
CountyPower County
StateIdaho
Coordinates42.81517, -112.79247
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating38 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width50 ft (15.3 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,500 (2023)
Projected traffic9,750 by 2042
Trucks19%
Lanes on structure2
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 86 Wbl over Leyshon Road Gs built?

It was built in 1959, making it 66 years old in 2025.

What condition is I 86 Wbl over Leyshon Road Gs 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 July 2024.

How much traffic does I 86 Wbl over Leyshon Road Gs carry?

About 6,500 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is I 86 Wbl over Leyshon Road Gs?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m) and a deck 50 ft wide.

Who owns I 86 Wbl over Leyshon Road Gs?

It is owned by the State Highway Agency.