US Bridges

I-5 (hwy 1) SB over Oak Creek

Fair

Linn County, Oregon · 025 MI S of Albany Scl · Structure no. 08227S001 23048

Built
1958
67 years old
Condition
Fair
inspected January 2023
Type
Tee Beam
Concrete Continuous
Length
126 ft
3 main spans
Daily traffic
27,073
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 1) SB over Oak Creek is a concrete continuous tee beam carrying I-5 (hwy 1) SB over Oak Creek in Linn County, Oregon. It was built in 1958, so it is 67 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 27,073 vehicles a day, roughly 15% of them trucks, projected to reach 37,100 by 2042. The structure is 126 ft (38.4 m) long and 42 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesI-5 (hwy 1) SB
CrossesOak Creek
Location025 MI S of Albany Scl
RouteInterstate 5
CountyLinn County
StateOregon
Coordinates44.59033, -123.06217
Functional classUrban 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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.1 US tons
Inventory rating31.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length126 ft (38.4 m)
Longest span42 ft (12.8 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,073 (2022)
Projected traffic37,100 by 2042
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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-5 (hwy 1) SB over Oak Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is I-5 (hwy 1) SB over Oak Creek 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 January 2023.

How much traffic does I-5 (hwy 1) SB over Oak Creek carry?

About 27,073 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is I-5 (hwy 1) SB over Oak Creek?

The structure is 126 ft (38.4 m) long with a longest span of 42 ft (12.8 m) and a deck 42 ft wide.

Who owns I-5 (hwy 1) SB over Oak Creek?

It is owned by the State Highway Agency.