US Bridges

Stc 6703;E 65th S over Idaho Canal

FairPosted for load

Bonneville County, Idaho · 3.6 S. 1.2 E. Idaho Falls · Structure no. 000000000020755

Built
1950
75 years old, rebuilt 1973
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
35 ft
1 main span
Daily traffic
5,100
2023 count
Owner
County
County Highway Agency

About this bridge

Stc 6703;E 65th S over Idaho Canal is a concrete stringer/multi-beam or girder carrying Stc 6703;E 65th S over Idaho Canal in Bonneville County, Idaho. It was built in 1950 and reconstructed in 1973, 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 6 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 5,100 vehicles a day, roughly 1% of them trucks, projected to reach 7,650 by 2042. The structure is 35 ft (10.7 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesStc 6703;E 65th S
CrossesIdaho Canal
Location3.6 S. 1.2 E. Idaho Falls
RouteCounty Highway 6703
CountyBonneville County
StateIdaho
Coordinates43.43908, -112.01414
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length35 ft (10.7 m)
Longest span33 ft (10.1 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,100 (2023)
Projected traffic7,650 by 2042
Trucks1%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$485,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Stc 6703;E 65th S over Idaho Canal built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1973.

What condition is Stc 6703;E 65th S over Idaho 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 April 2023.

How much traffic does Stc 6703;E 65th S over Idaho Canal carry?

About 5,100 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Stc 6703;E 65th S over Idaho Canal?

The structure is 35 ft (10.7 m) long with a longest span of 33 ft (10.1 m) and a deck 35 ft wide.

Who owns Stc 6703;E 65th S over Idaho Canal?

It is owned by the County Highway Agency.