US Bridges

I-5 (hwy 1) NB over HWY 72

Fair

Marion County, Oregon · 006 MI N Salem Ncl · Structure no. 07855C001 25995

Built
1975
50 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
417 ft
3 main spans
Daily traffic
51,175
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 1) NB over HWY 72 is a prestressed concrete continuous box beam or girders - multiple carrying I-5 (hwy 1) NB over HWY 72 in Marion County, Oregon. It was built in 1975, so it is 50 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 51,175 vehicles a day, roughly 13% of them trucks, projected to reach 54,900 by 2042. The structure is 417 ft (127.1 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-5 (hwy 1) NB
CrossesHWY 72
Location006 MI N Salem Ncl
RouteInterstate 5
CountyMarion County
StateOregon
Coordinates45.00195, -122.9982
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length417 ft (127.1 m)
Longest span217 ft (66.1 m)
Deck width64 ft (19.6 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51,175 (2022)
Projected traffic54,900 by 2042
Trucks13%
Lanes on structure3
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-5 (hwy 1) NB over HWY 72 built?

It was built in 1975, making it 50 years old in 2025.

What condition is I-5 (hwy 1) NB over HWY 72 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 August 2024.

How much traffic does I-5 (hwy 1) NB over HWY 72 carry?

About 51,175 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is I-5 (hwy 1) NB over HWY 72?

The structure is 417 ft (127.1 m) long with a longest span of 217 ft (66.1 m) and a deck 64 ft wide.

Who owns I-5 (hwy 1) NB over HWY 72?

It is owned by the State Highway Agency.