US Bridges

I-84 (hwy 006) WB over Benson Crk I/C WB

Good

Malheur County, Oregon · 010 MI S Baker CO Line · Structure no. 09120 006 35304

Built
1967
58 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
176 ft
3 main spans
Daily traffic
6,135
2022 count
Owner
State
State Highway Agency

About this bridge

I-84 (hwy 006) WB over Benson Crk I/C WB is a prestressed concrete stringer/multi-beam or girder carrying I-84 (hwy 006) WB over Benson Crk I/C WB in Malheur County, Oregon. It was built in 1967, so it is 58 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 6,135 vehicles a day, roughly 37% of them trucks, projected to reach 7,750 by 2042. The structure is 176 ft (53.6 m) long and 42 ft wide. If it were closed, the detour would be 70.8 mi (114 km).

CarriesI-84 (hwy 006) WB
CrossesBenson Crk I/C WB
Location010 MI S Baker CO Line
RouteInterstate 84
StateOregon
Coordinates44.29051, -117.22344
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31.7 US tons
Inventory rating24.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length176 ft (53.6 m)
Longest span80 ft (24.4 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,135 (2022)
Projected traffic7,750 by 2042
Trucks37%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed70.8 mi (114 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-84 (hwy 006) WB over Benson Crk I/C WB built?

It was built in 1967, making it 58 years old in 2025.

What condition is I-84 (hwy 006) WB over Benson Crk I/C WB 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) WB over Benson Crk I/C WB carry?

About 6,135 vehicles per day (2022 count), of which roughly 37% are trucks.

How long is I-84 (hwy 006) WB over Benson Crk I/C WB?

The structure is 176 ft (53.6 m) long with a longest span of 80 ft (24.4 m) and a deck 42 ft wide.

Who owns I-84 (hwy 006) WB over Benson Crk I/C WB?

It is owned by the State Highway Agency.