US Bridges

East Road over L Canal

Fair

Jerome County, Idaho · 7.8 E. Jerome · Structure no. 000000000024615

Built
1975
50 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
170
2023 count
Owner
Local
Other Local Agency

About this bridge

East Road over L Canal is a prestressed concrete tee beam carrying East Road over L Canal in Jerome County, Idaho. It was built in 1975, so it is 50 years old, older 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 170 vehicles a day, roughly 6% of them trucks, projected to reach 255 by 2042. The structure is 41 ft (12.5 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesEast Road
CrossesL Canal
Location7.8 E. Jerome
RouteCounty Highway 0
CountyJerome County
StateIdaho
Coordinates42.72211, -114.36669
Functional classRural Minor 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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length41 ft (12.5 m)
Longest span40 ft (12.2 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic170 (2023)
Projected traffic255 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$386,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was East Road over L Canal built?

It was built in 1975, making it 50 years old in 2025.

What condition is East Road over L 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 East Road over L Canal carry?

About 170 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is East Road over L Canal?

The structure is 41 ft (12.5 m) long with a longest span of 40 ft (12.2 m) and a deck 26 ft wide.

Who owns East Road over L Canal?

It is owned by the Other Local Agency.