US Bridges

US 26 over Trego Canal

Fair

Bingham County, Idaho · 0.8 W. Blackfoot · Structure no. 000000000013220

Built
1989
36 years old
Condition
Fair
inspected February 2023
Type
Frame
Concrete
Length
39 ft
1 main span
Daily traffic
11,500
2023 count
Owner
State
State Highway Agency

About this bridge

US 26 over Trego Canal is a concrete frame carrying US 26 over Trego Canal in Bingham County, Idaho. It was built in 1989, so it is 36 years old, younger 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 6 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 11,500 vehicles a day, roughly 10% of them trucks, projected to reach 17,250 by 2042. The structure is 39 ft (11.9 m) long and 104 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 26
CrossesTrego Canal
Location0.8 W. Blackfoot
RouteU.S. Route 26
CountyBingham County
StateIdaho
Coordinates43.20378, -112.37464
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95 US tons
Inventory rating57 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length39 ft (11.9 m)
Longest span39 ft (11.9 m)
Deck width104 ft (31.7 m)
Roadway width75 ft (22.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,500 (2023)
Projected traffic17,250 by 2042
Trucks10%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 26 over Trego Canal built?

It was built in 1989, making it 36 years old in 2025.

What condition is US 26 over Trego Canal 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 February 2023.

How much traffic does US 26 over Trego Canal carry?

About 11,500 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is US 26 over Trego Canal?

The structure is 39 ft (11.9 m) long with a longest span of 39 ft (11.9 m) and a deck 104 ft wide.

Who owns US 26 over Trego Canal?

It is owned by the State Highway Agency.