US Bridges

I-5 (hwy 001) Con over I-5 NB to I-405 SB

Fair

Multnomah County, Oregon · East Fremont Intrchnge · Structure no. 08958E001C30306

Built
1973
52 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Steel Continuous
Length
2,457 ft
11 main spans
Daily traffic
13,895
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 001) Con over I-5 NB to I-405 SB is a steel continuous box beam or girders - multiple carrying I-5 (hwy 001) Con over I-5 NB to I-405 SB in Multnomah County, Oregon. It was built in 1973, so it is 52 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 13,895 vehicles a day, roughly 8% of them trucks, projected to reach 72,050 by 2040. The structure is 2,457 ft (748.9 m) long and 37 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesI-5 (hwy 001) Con
CrossesI-5 NB to I-405 SB
LocationEast Fremont Intrchnge
RouteInterstate 5
CountyMultnomah County
StateOregon
Coordinates45.5436, -122.6752
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.8 US tons
Inventory rating25.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans11 (+6 approach)
Design loadHS 20
Structure length2,457 ft (748.9 m)
Longest span191 ft (58.2 m)
Deck width37 ft (11.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,895 (2022)
Projected traffic72,050 by 2040
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesThird level (interchange)
CrossesHighway
Detour if closed6.2 mi (10 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 001) Con over I-5 NB to I-405 SB built?

It was built in 1973, making it 52 years old in 2025.

What condition is I-5 (hwy 001) Con over I-5 NB to I-405 SB 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 October 2024.

How much traffic does I-5 (hwy 001) Con over I-5 NB to I-405 SB carry?

About 13,895 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is I-5 (hwy 001) Con over I-5 NB to I-405 SB?

The structure is 2,457 ft (748.9 m) long with a longest span of 191 ft (58.2 m) and a deck 37 ft wide.

Who owns I-5 (hwy 001) Con over I-5 NB to I-405 SB?

It is owned by the State Highway Agency.