US Bridges

I-84 (hwy 002) EB over Willow Creek EB

Fair

Gilliam County, Oregon · 011 MI E Heppner JCT · Structure no. 09197 002 14860

Built
1965
60 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
340 ft
5 main spans
Daily traffic
7,076
2022 count
Owner
State
State Highway Agency

About this bridge

I-84 (hwy 002) EB over Willow Creek EB is a prestressed concrete stringer/multi-beam or girder carrying I-84 (hwy 002) EB over Willow Creek EB in Gilliam County, Oregon. It was built in 1965, so it is 60 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 7,076 vehicles a day, roughly 26% of them trucks, projected to reach 9,200 by 2042. The structure is 340 ft (103.6 m) long and 35 ft wide. If it were closed, the detour would be 52.2 mi (84 km).

Location

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CarriesI-84 (hwy 002) EB
CrossesWillow Creek EB
Location011 MI E Heppner JCT
RouteInterstate 84
CountyGilliam County
StateOregon
Coordinates45.7957, -120.0169
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating24.7 US tons
Inventory rating19 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length340 ft (103.6 m)
Longest span68 ft (20.7 m)
Deck width35 ft (10.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,076 (2022)
Projected traffic9,200 by 2042
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed52.2 mi (84 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$1.7 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I-84 (hwy 002) EB over Willow Creek EB built?

It was built in 1965, making it 60 years old in 2025.

What condition is I-84 (hwy 002) EB over Willow Creek EB 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 July 2024.

How much traffic does I-84 (hwy 002) EB over Willow Creek EB carry?

About 7,076 vehicles per day (2022 count), of which roughly 26% are trucks.

How long is I-84 (hwy 002) EB over Willow Creek EB?

The structure is 340 ft (103.6 m) long with a longest span of 68 ft (20.7 m) and a deck 35 ft wide.

Who owns I-84 (hwy 002) EB over Willow Creek EB?

It is owned by the State Highway Agency.