US Bridges

I 86 Ebl over Isaak Loop Gs

Good

Power County, Idaho · 4.6 W. American Falls · Structure no. 000000000010750

Built
1980
45 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
130 ft
3 main spans
Daily traffic
4,200
2023 count
Owner
State
State Highway Agency

About this bridge

I 86 Ebl over Isaak Loop Gs is a prestressed concrete stringer/multi-beam or girder carrying I 86 Ebl over Isaak Loop Gs in Power County, Idaho. It was built in 1980, so it is 45 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 4,200 vehicles a day, roughly 28% of them trucks, projected to reach 6,300 by 2042. The structure is 130 ft (39.6 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 86 Ebl
CrossesIsaak Loop Gs
Location4.6 W. American Falls
RouteInterstate 86
StateIdaho
Coordinates42.72531, -112.90661
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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating29 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span42 ft (12.8 m)
Deck width44 ft (13.3 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,200 (2023)
Projected traffic6,300 by 2042
Trucks28%
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 Ebl over Isaak Loop Gs built?

It was built in 1980, making it 45 years old in 2025.

What condition is I 86 Ebl over Isaak Loop 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 April 2024.

How much traffic does I 86 Ebl over Isaak Loop Gs carry?

About 4,200 vehicles per day (2023 count), of which roughly 28% are trucks.

How long is I 86 Ebl over Isaak Loop Gs?

The structure is 130 ft (39.6 m) long with a longest span of 42 ft (12.8 m) and a deck 44 ft wide.

Who owns I 86 Ebl over Isaak Loop Gs?

It is owned by the State Highway Agency.