US Bridges

300 East Road over R Canal

FairPosted for load

Jerome County, Idaho · 6.1 N. 3.0 E. Jerome · Structure no. 000000000024600

Built
1950
75 years old, rebuilt 1978
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
27 ft
1 main span
Daily traffic
350
2023 count
Owner
Local
Other Local Agency

About this bridge

300 East Road over R Canal is a steel stringer/multi-beam or girder carrying 300 East Road over R Canal in Jerome County, Idaho. It was built in 1950 and reconstructed in 1978, so it is 75 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 350 vehicles a day, roughly 3% of them trucks, projected to reach 525 by 2042. The structure is 27 ft (8.2 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries300 East Road
CrossesR Canal
Location6.1 N. 3.0 E. Jerome
RouteCounty Highway 0
CountyJerome County
StateIdaho
Coordinates42.81242, -114.46333
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating30 US tons
Inventory rating18 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckClosed grating
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span26 ft (7.9 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2023)
Projected traffic525 by 2042
Trucks3%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$418,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 300 East Road over R Canal built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1978.

What condition is 300 East Road over R 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 300 East Road over R Canal carry?

About 350 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is 300 East Road over R Canal?

The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 27 ft wide.

Who owns 300 East Road over R Canal?

It is owned by the Other Local Agency.