US Bridges

I-5 (hwy 1) over Market Street

Fair

Marion County, Oregon · In Salem · Structure no. 17320 001 25628

Built
1996
29 years old
Condition
Fair
inspected December 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
350 ft
3 main spans
Daily traffic
101,583
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 1) over Market Street is a prestressed concrete continuous box beam or girders - single or spread carrying I-5 (hwy 1) over Market Street in Marion County, Oregon. It was built in 1996, so it is 29 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 101,583 vehicles a day, roughly 13% of them trucks, projected to reach 108,000 by 2042. The structure is 350 ft (106.7 m) long and 149 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-5 (hwy 1)
CrossesMarket Street
LocationIn Salem
RouteInterstate 5
CountyMarion County
StateOregon
Coordinates44.95015, -122.99027
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.
Superstructure8 Very GoodNo problems noted.
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 rating95 US tons
Inventory rating73.5 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length350 ft (106.7 m)
Longest span190 ft (57.9 m)
Deck width149 ft (45.3 m)
Roadway width147 ft (44.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic101,583 (2022)
Projected traffic108,000 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

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 Market Street built?

It was built in 1996, making it 29 years old in 2025.

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

About 101,583 vehicles per day (2022 count), of which roughly 13% are trucks.

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

The structure is 350 ft (106.7 m) long with a longest span of 190 ft (57.9 m) and a deck 149 ft wide.

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

It is owned by the State Highway Agency.