US Bridges

SH 46 over Cedar Draw Canal

Good

Gooding County, Idaho · 5.0 S 1.8 W Wendell Scl · Structure no. 000000000034401

Built
2016
9 years old
Condition
Good
inspected November 2022
Type
Frame
Concrete
Length
28 ft
1 main span
Daily traffic
4,300
2023 count
Owner
State
State Highway Agency

About this bridge

SH 46 over Cedar Draw Canal is a concrete frame carrying SH 46 over Cedar Draw 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,300 vehicles a day, roughly 13% of them trucks, projected to reach 6,450 by 2042. The structure is 28 ft (8.5 m) long and 46 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSH 46
CrossesCedar Draw Canal
Location5.0 S 1.8 W Wendell Scl
RouteState Highway 46
StateIdaho
Coordinates42.69581, -114.74
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
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 evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating37.5 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width46 ft (14 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,300 (2023)
Projected traffic6,450 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Cedar Draw Canal built?

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

What condition is SH 46 over Cedar Draw 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 Cedar Draw Canal carry?

About 4,300 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is SH 46 over Cedar Draw Canal?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m) and a deck 46 ft wide.

Who owns SH 46 over Cedar Draw Canal?

It is owned by the State Highway Agency.