US Bridges

I-5 (hwy 1) over State Street

Fair

Marion County, Oregon · In Salem · Structure no. 18267 001 25474

Built
2000
25 years old
Condition
Fair
inspected December 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
136 ft
1 main span
Daily traffic
101,907
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 1) over State Street is a prestressed concrete box beam or girders - single or spread carrying I-5 (hwy 1) over State Street in Marion County, Oregon. It was built in 2000, so it is 25 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 101,907 vehicles a day, roughly 13% of them trucks, projected to reach 108,200 by 2042. The structure is 136 ft (41.5 m) long and 146 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-5 (hwy 1)
CrossesState Street
LocationIn Salem
RouteInterstate 5
CountyMarion County
StateOregon
Coordinates44.92791, -122.99033
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.1 US tons
Inventory rating51.8 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length136 ft (41.5 m)
Longest span136 ft (41.5 m)
Deck width146 ft (44.6 m)
Roadway width118 ft (36 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic101,907 (2022)
Projected traffic108,200 by 2042
Trucks13%
Lanes on structure6
Traffic directionTwo-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) over State Street built?

It was built in 2000, making it 25 years old in 2025.

What condition is I-5 (hwy 1) over State Street 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) over State Street carry?

About 101,907 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is I-5 (hwy 1) over State Street?

The structure is 136 ft (41.5 m) long with a longest span of 136 ft (41.5 m) and a deck 146 ft wide.

Who owns I-5 (hwy 1) over State Street?

It is owned by the State Highway Agency.