US Bridges

US 93 over R Canal

Fair

Jerome County, Idaho · 13.2 N. Twin Falls · Structure no. 000000000017610

Built
1984
41 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
6,900
2023 count
Owner
State
State Highway Agency

About this bridge

US 93 over R Canal is a prestressed concrete stringer/multi-beam or girder carrying US 93 over R Canal in Jerome County, Idaho. It was built in 1984, so it is 41 years old, younger 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 6,900 vehicles a day, roughly 25% of them trucks, projected to reach 10,350 by 2042. The structure is 56 ft (17.1 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 93
CrossesR Canal
Location13.2 N. Twin Falls
RouteU.S. Route 93
StateIdaho
Coordinates42.78027, -114.43344
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length56 ft (17.1 m)
Longest span54 ft (16.5 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,900 (2023)
Projected traffic10,350 by 2042
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway 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 US 93 over R Canal built?

It was built in 1984, making it 41 years old in 2025.

What condition is US 93 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 March 2023.

How much traffic does US 93 over R Canal carry?

About 6,900 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is US 93 over R Canal?

The structure is 56 ft (17.1 m) long with a longest span of 54 ft (16.5 m) and a deck 42 ft wide.

Who owns US 93 over R Canal?

It is owned by the State Highway Agency.