US Bridges

I-5 (hwy 1) NB over Commercial Street SE

Fair

Marion County, Oregon · 00.33 M Junction HWY 1E · Structure no. 16161 001 24938

Built
1981
44 years old, rebuilt 1998
Condition
Fair
inspected December 2023
Type
Tee Beam
Concrete Continuous
Length
164 ft
3 main spans
Daily traffic
33,636
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 1) NB over Commercial Street SE is a concrete continuous tee beam carrying I-5 (hwy 1) NB over Commercial Street SE in Marion County, Oregon. It was built in 1981 and reconstructed in 1998, so it is 44 years old, younger 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 33,636 vehicles a day, roughly 15% of them trucks, projected to reach 37,450 by 2042. The structure is 164 ft (50 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-5 (hwy 1) NB
CrossesCommercial Street SE
Location00.33 M Junction HWY 1E
RouteInterstate 5
CountyMarion County
StateOregon
Coordinates44.8562, -123.01192
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 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 geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.2 US tons
Inventory rating25.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length164 ft (50 m)
Longest span63 ft (19.2 m)
Deck width46 ft (13.9 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,636 (2022)
Projected traffic37,450 by 2042
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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-5 (hwy 1) NB over Commercial Street SE built?

It was built in 1981, making it 44 years old in 2025. It was reconstructed in 1998.

What condition is I-5 (hwy 1) NB over Commercial Street SE 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 December 2023.

How much traffic does I-5 (hwy 1) NB over Commercial Street SE carry?

About 33,636 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is I-5 (hwy 1) NB over Commercial Street SE?

The structure is 164 ft (50 m) long with a longest span of 63 ft (19.2 m) and a deck 46 ft wide.

Who owns I-5 (hwy 1) NB over Commercial Street SE?

It is owned by the State Highway Agency.