US Bridges

I-84 (hwy 006) over Owyhee Canal

Good

Malheur County, Oregon · 07.5 MI NW Idaho State LN · Structure no. 07936A006 37048

Built
1955
70 years old, rebuilt 1972
Condition
Good
inspected March 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
13,133
2022 count
Owner
State
State Highway Agency

About this bridge

I-84 (hwy 006) over Owyhee Canal is a concrete continuous culvert carrying I-84 (hwy 006) over Owyhee Canal in Malheur County, Oregon. It was built in 1955 and reconstructed in 1972, so it is 70 years old, older than the Oregon average of 49.9 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 13,133 vehicles a day, roughly 18% of them trucks, projected to reach 15,400 by 2042. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesI-84 (hwy 006)
CrossesOwyhee Canal
Location07.5 MI NW Idaho State LN
RouteInterstate 84
CountyMalheur County
StateOregon
Coordinates44.09256, -117.0294
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating29.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,133 (2022)
Projected traffic15,400 by 2042
Trucks18%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-84 (hwy 006) over Owyhee Canal built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1972.

What condition is I-84 (hwy 006) over Owyhee 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 March 2023.

How much traffic does I-84 (hwy 006) over Owyhee Canal carry?

About 13,133 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is I-84 (hwy 006) over Owyhee Canal?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns I-84 (hwy 006) over Owyhee Canal?

It is owned by the State Highway Agency.