US Bridges

I-84 (hwy 006) WB over Snake River

Fair

Malheur County, Oregon · Ore-Idaho State Line · Structure no. 08107W006 37792

Built
1960
65 years old, rebuilt 2008
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
953 ft
7 main spans
Daily traffic
12,977
2022 count
Owner
State
State Highway Agency

About this bridge

I-84 (hwy 006) WB over Snake River is a steel stringer/multi-beam or girder carrying I-84 (hwy 006) WB over Snake River in Malheur County, Oregon. It was built in 1960 and reconstructed in 2008, so it is 65 years old, older than the Oregon average of 49.9 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 12,977 vehicles a day, roughly 21% of them trucks, projected to reach 16,550 by 2042. The structure is 953 ft (290.6 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-84 (hwy 006) WB
CrossesSnake River
LocationOre-Idaho State Line
RouteInterstate 84
CountyMalheur County
StateOregon
Coordinates44.00711, -116.9411
Functional classUrban Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.3 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans7 (+2 approach)
Design loadHS 20
Structure length953 ft (290.6 m)
Longest span127 ft (38.7 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,977 (2022)
Projected traffic16,550 by 2042
Trucks21%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was I-84 (hwy 006) WB over Snake River built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2008.

What condition is I-84 (hwy 006) WB over Snake River 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 May 2023.

How much traffic does I-84 (hwy 006) WB over Snake River carry?

About 12,977 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is I-84 (hwy 006) WB over Snake River?

The structure is 953 ft (290.6 m) long with a longest span of 127 ft (38.7 m) and a deck 35 ft wide.

Who owns I-84 (hwy 006) WB over Snake River?

It is owned by the State Highway Agency.