US Bridges

I-84 (hwy 006) EB over S F Jacobsen Gulch EB

Fair

Malheur County, Oregon · 080 MI NW Idaho State LN · Structure no. 07979A006 36999

Built
1973
52 years old
Condition
Fair
inspected March 2023
Type
Slab
Prestressed Concrete
Length
114 ft
3 main spans
Daily traffic
6,566
2022 count
Owner
State
State Highway Agency

About this bridge

I-84 (hwy 006) EB over S F Jacobsen Gulch EB is a prestressed concrete slab carrying I-84 (hwy 006) EB over S F Jacobsen Gulch EB in Malheur County, Oregon. It was built in 1973, so it is 52 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 6,566 vehicles a day, roughly 18% of them trucks, projected to reach 7,700 by 2042. The structure is 114 ft (34.7 m) long and 46 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesI-84 (hwy 006) EB
CrossesS F Jacobsen Gulch EB
Location080 MI NW Idaho State LN
RouteInterstate 84
CountyMalheur County
StateOregon
Coordinates44.09742, -117.03661
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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating42.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span42 ft (12.8 m)
Deck width46 ft (14.1 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,566 (2022)
Projected traffic7,700 by 2042
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-84 (hwy 006) EB over S F Jacobsen Gulch EB built?

It was built in 1973, making it 52 years old in 2025.

What condition is I-84 (hwy 006) EB over S F Jacobsen Gulch 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 March 2023.

How much traffic does I-84 (hwy 006) EB over S F Jacobsen Gulch EB carry?

About 6,566 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is I-84 (hwy 006) EB over S F Jacobsen Gulch EB?

The structure is 114 ft (34.7 m) long with a longest span of 42 ft (12.8 m) and a deck 46 ft wide.

Who owns I-84 (hwy 006) EB over S F Jacobsen Gulch EB?

It is owned by the State Highway Agency.