US Bridges

Stc 6774;N 2400 E over Salem Union Canal

Fair

Fremont County, Idaho · In ST Anthony · Structure no. 000000000021055

Built
1986
39 years old
Condition
Fair
inspected November 2022
Type
Frame
Concrete
Length
34 ft
1 main span
Daily traffic
1,900
2023 count
Owner
County
County Highway Agency

About this bridge

Stc 6774;N 2400 E over Salem Union Canal is a concrete frame carrying Stc 6774;N 2400 E over Salem Union Canal in Fremont County, Idaho. It was built in 1986, so it is 39 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 1,900 vehicles a day, roughly 14% of them trucks, projected to reach 2,850 by 2042. The structure is 34 ft (10.4 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesStc 6774;N 2400 E
CrossesSalem Union Canal
LocationIn ST Anthony
RouteCounty Highway 6774
CountyFremont County
StateIdaho
Coordinates43.95881, -111.67797
Functional classRural Major Collector

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 inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97 US tons
Inventory rating58 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span34 ft (10.4 m)
Deck width55 ft (16.7 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2023)
Projected traffic2,850 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Stc 6774;N 2400 E over Salem Union Canal built?

It was built in 1986, making it 39 years old in 2025.

What condition is Stc 6774;N 2400 E over Salem Union 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 November 2022.

How much traffic does Stc 6774;N 2400 E over Salem Union Canal carry?

About 1,900 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is Stc 6774;N 2400 E over Salem Union Canal?

The structure is 34 ft (10.4 m) long with a longest span of 34 ft (10.4 m) and a deck 55 ft wide.

Who owns Stc 6774;N 2400 E over Salem Union Canal?

It is owned by the County Highway Agency.