US Bridges

2200 North Road over Salmon Main Canal

Fair

Twin Falls County, Idaho · 2.5 S. 2.0 W. Hollister · Structure no. 000000000025490

Built
1971
54 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
50 ft
2 main spans
Daily traffic
60
2023 count
Owner
Local
Other Local Agency

About this bridge

2200 North Road over Salmon Main Canal is a prestressed concrete tee beam carrying 2200 North Road over Salmon Main Canal in Twin Falls County, Idaho. It was built in 1971, so it is 54 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 60 vehicles a day, roughly 10% of them trucks, projected to reach 90 by 2039. The structure is 50 ft (15.2 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries2200 North Road
CrossesSalmon Main Canal
Location2.5 S. 2.0 W. Hollister
RouteCounty Highway 0
StateIdaho
Coordinates42.31711, -114.61458
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 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 alignment7: Better than present minimum criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length50 ft (15.2 m)
Longest span25 ft (7.6 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2023)
Projected traffic90 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 2200 North Road over Salmon Main Canal built?

It was built in 1971, making it 54 years old in 2025.

What condition is 2200 North Road over Salmon Main 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 October 2024.

How much traffic does 2200 North Road over Salmon Main Canal carry?

About 60 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 2200 North Road over Salmon Main Canal?

The structure is 50 ft (15.2 m) long with a longest span of 25 ft (7.6 m) and a deck 28 ft wide.

Who owns 2200 North Road over Salmon Main Canal?

It is owned by the Other Local Agency.