US Bridges

400 East Road over U Canal

Fair

Jerome County, Idaho · 3.3 N. 4.0 E. Jerome · Structure no. 000000000024665

Built
1981
44 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
50
2023 count
Owner
Local
Other Local Agency

About this bridge

400 East Road over U Canal is a prestressed concrete tee beam carrying 400 East Road over U Canal in Jerome County, Idaho. It was built in 1981, so it is 44 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 75 by 2039. The structure is 60 ft (18.3 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries400 East Road
CrossesU Canal
Location3.3 N. 4.0 E. Jerome
RouteCounty Highway 0
CountyJerome County
StateIdaho
Coordinates42.77061, -114.44358
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating32 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span59 ft (18 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic75 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local 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 400 East Road over U Canal built?

It was built in 1981, making it 44 years old in 2025.

What condition is 400 East Road over U 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 2024.

How much traffic does 400 East Road over U Canal carry?

About 50 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 400 East Road over U Canal?

The structure is 60 ft (18.3 m) long with a longest span of 59 ft (18 m) and a deck 30 ft wide.

Who owns 400 East Road over U Canal?

It is owned by the Other Local Agency.