US Bridges

I-5 (hwy 1) over Truax Creek

Fair

Linn County, Oregon · 006 MI N of HWY 58 JCT · Structure no. 06931A001 23501

Built
1947
78 years old, rebuilt 1998
Condition
Fair
inspected January 2025
Type
Culvert
Concrete Continuous
Length
26 ft
3 main spans
Daily traffic
66,382
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 1) over Truax Creek is a concrete continuous culvert carrying I-5 (hwy 1) over Truax Creek in Linn County, Oregon. It was built in 1947 and reconstructed in 1998, so it is 78 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 66,382 vehicles a day, roughly 15% of them trucks, projected to reach 88,700 by 2042. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-5 (hwy 1)
CrossesTruax Creek
Location006 MI N of HWY 58 JCT
RouteInterstate 5
CountyLinn County
StateOregon
Coordinates44.65544, -123.06102
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating76.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic66,382 (2022)
Projected traffic88,700 by 2042
Trucks15%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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) over Truax Creek built?

It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1998.

What condition is I-5 (hwy 1) over Truax 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 2025.

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

About 66,382 vehicles per day (2022 count), of which roughly 15% are trucks.

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

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

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

It is owned by the State Highway Agency.