US Bridges

Hy 1 SB to Hy 2 EB over HWY 1 I-5

Fair

Multnomah County, Oregon · 0.5 MI E of Portland Cc · Structure no. 08588C002 00020

Built
1963
62 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
1,827 ft
15 main spans
Daily traffic
71,767
2022 count
Owner
State
State Highway Agency

About this bridge

Hy 1 SB to Hy 2 EB over HWY 1 I-5 is a steel stringer/multi-beam or girder carrying Hy 1 SB to Hy 2 EB over HWY 1 I-5 in Multnomah County, Oregon. It was built in 1963, so it is 62 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 71,767 vehicles a day, roughly 7% of them trucks, projected to reach 75,000 by 2042. The structure is 1,827 ft (556.9 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesHy 1 SB to Hy 2 EB
CrossesHWY 1 I-5
Location0.5 MI E of Portland Cc
RouteInterstate 84
CountyMultnomah County
StateOregon
Coordinates45.5259, -122.6659
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.7 US tons
Inventory rating16.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans15 (+3 approach)
Design loadHS 20
Structure length1,827 ft (556.9 m)
Longest span140 ft (42.7 m)
Deck width26 ft (7.9 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic71,767 (2022)
Projected traffic75,000 by 2042
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesThird level (interchange)
CrossesHighway, waterway and railroad
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$8.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Hy 1 SB to Hy 2 EB over HWY 1 I-5 built?

It was built in 1963, making it 62 years old in 2025.

What condition is Hy 1 SB to Hy 2 EB over HWY 1 I-5 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 April 2023.

How much traffic does Hy 1 SB to Hy 2 EB over HWY 1 I-5 carry?

About 71,767 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Hy 1 SB to Hy 2 EB over HWY 1 I-5?

The structure is 1,827 ft (556.9 m) long with a longest span of 140 ft (42.7 m) and a deck 26 ft wide.

Who owns Hy 1 SB to Hy 2 EB over HWY 1 I-5?

It is owned by the State Highway Agency.