US Bridges

N 2300 E; Crane LN over Teton Island Canal

Fair

Madison County, Idaho · 0.3 N. 1.0 W. Teton · Structure no. 000000000032820

Built
1977
48 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
110
2023 count
Owner
County
County Highway Agency

About this bridge

N 2300 E; Crane LN over Teton Island Canal is a prestressed concrete tee beam carrying N 2300 E; Crane LN over Teton Island Canal in Madison County, Idaho. It was built in 1977, so it is 48 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 110 vehicles a day, roughly 10% of them trucks, projected to reach 165 by 2039. The structure is 47 ft (14.3 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesN 2300 E; Crane LN
CrossesTeton Island Canal
Location0.3 N. 1.0 W. Teton
RouteCounty Highway 0
CountyMadison County
StateIdaho
Coordinates43.89092, -111.69806
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
Deck7 GoodSome minor problems.
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 statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length47 ft (14.3 m)
Longest span45 ft (13.7 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2023)
Projected traffic165 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

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 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was N 2300 E; Crane LN over Teton Island Canal built?

It was built in 1977, making it 48 years old in 2025.

What condition is N 2300 E; Crane LN over Teton Island 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 N 2300 E; Crane LN over Teton Island Canal carry?

About 110 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is N 2300 E; Crane LN over Teton Island Canal?

The structure is 47 ft (14.3 m) long with a longest span of 45 ft (13.7 m) and a deck 28 ft wide.

Who owns N 2300 E; Crane LN over Teton Island Canal?

It is owned by the County Highway Agency.