US Bridges

SH 46 over Lateral W-9 Canal

Good

Gooding County, Idaho · 0.9 S Wendell Scl · Structure no. 000000000034411

Built
2016
9 years old
Condition
Good
inspected November 2022
Type
Frame
Concrete
Length
23 ft
1 main span
Daily traffic
3,600
2023 count
Owner
State
State Highway Agency

About this bridge

SH 46 over Lateral W-9 Canal is a concrete frame carrying SH 46 over Lateral W-9 Canal in Gooding County, Idaho. It was built in 2016, so it is 9 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,600 vehicles a day, roughly 30% of them trucks, projected to reach 5,400 by 2042. The structure is 23 ft (7 m) long and 70 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesSH 46
CrossesLateral W-9 Canal
Location0.9 S Wendell Scl
RouteState Highway 46
CountyGooding County
StateIdaho
Coordinates42.75514, -114.70403
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.7 US tons
Inventory rating58.5 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length23 ft (7 m)
Longest span23 ft (7 m)
Deck width70 ft (21.2 m)
Roadway width68 ft (20.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,600 (2023)
Projected traffic5,400 by 2042
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

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 SH 46 over Lateral W-9 Canal built?

It was built in 2016, making it 9 years old in 2025.

What condition is SH 46 over Lateral W-9 Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2022.

How much traffic does SH 46 over Lateral W-9 Canal carry?

About 3,600 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is SH 46 over Lateral W-9 Canal?

The structure is 23 ft (7 m) long with a longest span of 23 ft (7 m) and a deck 70 ft wide.

Who owns SH 46 over Lateral W-9 Canal?

It is owned by the State Highway Agency.