US Bridges

I-84 (hwy 006) over Alder CREEK(8th Xing)

Fair

Baker County, Oregon · 208 Ni SE S Baker Intch · Structure no. 08963 006 32299

Built
1964
61 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
11,720
2022 count
Owner
State
State Highway Agency

About this bridge

I-84 (hwy 006) over Alder CREEK(8th Xing) is a concrete continuous culvert carrying I-84 (hwy 006) over Alder CREEK(8th Xing) in Baker County, Oregon. It was built in 1964, so it is 61 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 11,720 vehicles a day, roughly 45% of them trucks, projected to reach 13,700 by 2042. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 70.8 mi (114 km).

Location

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CarriesI-84 (hwy 006)
CrossesAlder CREEK(8th Xing)
Location208 Ni SE S Baker Intch
RouteInterstate 84
CountyBaker County
StateOregon
Coordinates44.63166, -117.5228
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating42.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,720 (2022)
Projected traffic13,700 by 2042
Trucks45%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-84 (hwy 006) over Alder CREEK(8th Xing) built?

It was built in 1964, making it 61 years old in 2025.

What condition is I-84 (hwy 006) over Alder CREEK(8th Xing) 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 April 2023.

How much traffic does I-84 (hwy 006) over Alder CREEK(8th Xing) carry?

About 11,720 vehicles per day (2022 count), of which roughly 45% are trucks.

How long is I-84 (hwy 006) over Alder CREEK(8th Xing)?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns I-84 (hwy 006) over Alder CREEK(8th Xing)?

It is owned by the State Highway Agency.