US Bridges

I-84 (hwy 006) over Irrigon JCT Interchange

Fair

Morrow County, Oregon · 9.4 MI W Umatilla CO LN · Structure no. 08931W006 16795

Built
1962
63 years old, rebuilt 1985
Condition
Fair
inspected March 2024
Type
Tee Beam
Concrete Continuous
Length
217 ft
3 main spans
Daily traffic
9,643
2022 count
Owner
State
State Highway Agency

About this bridge

I-84 (hwy 006) over Irrigon JCT Interchange is a concrete continuous tee beam carrying I-84 (hwy 006) over Irrigon JCT Interchange in Morrow County, Oregon. It was built in 1962 and reconstructed in 1985, so it is 63 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 9,643 vehicles a day, roughly 21% of them trucks, projected to reach 14,650 by 2042. The structure is 217 ft (66.1 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-84 (hwy 006)
CrossesIrrigon JCT Interchange
Location9.4 MI W Umatilla CO LN
RouteInterstate 84
CountyMorrow County
StateOregon
Coordinates45.83412, -119.62356
Functional classRural 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.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length217 ft (66.1 m)
Longest span74 ft (22.6 m)
Deck width50 ft (15.3 m)
Roadway width48 ft (14.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,643 (2022)
Projected traffic14,650 by 2042
Trucks21%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-84 (hwy 006) over Irrigon JCT Interchange built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1985.

What condition is I-84 (hwy 006) over Irrigon JCT Interchange 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 2024.

How much traffic does I-84 (hwy 006) over Irrigon JCT Interchange carry?

About 9,643 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is I-84 (hwy 006) over Irrigon JCT Interchange?

The structure is 217 ft (66.1 m) long with a longest span of 74 ft (22.6 m) and a deck 50 ft wide.

Who owns I-84 (hwy 006) over Irrigon JCT Interchange?

It is owned by the State Highway Agency.