US Bridges

I-5 NB to I-205 NB over I-5 SB Conn to I-205 NB

Fair

Washington County, Oregon · 1.5 MI S of Tualatin R. · Structure no. 09743C001C28848

Built
1969
56 years old
Condition
Fair
inspected January 2024
Type
Frame
Steel Continuous
Length
235 ft
3 main spans
Daily traffic
18,656
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 NB to I-205 NB over I-5 SB Conn to I-205 NB is a steel continuous frame carrying I-5 NB to I-205 NB over I-5 SB Conn to I-205 NB in Washington County, Oregon. It was built in 1969, so it is 56 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 18,656 vehicles a day, roughly 10% of them trucks, projected to reach 26,226 by 2030. The structure is 235 ft (71.6 m) long and 44 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesI-5 NB to I-205 NB
CrossesI-5 SB Conn to I-205 NB
Location1.5 MI S of Tualatin R.
RouteInterstate 5
CountyWashington County
StateOregon
Coordinates45.36807, -122.75643
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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating49.6 US tons

Structure

Structure typeFrame
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length235 ft (71.6 m)
Longest span115 ft (35.1 m)
Deck width44 ft (13.5 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,656 (2022)
Projected traffic26,226 by 2030
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 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 NB to I-205 NB over I-5 SB Conn to I-205 NB built?

It was built in 1969, making it 56 years old in 2025.

What condition is I-5 NB to I-205 NB over I-5 SB Conn to I-205 NB 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 January 2024.

How much traffic does I-5 NB to I-205 NB over I-5 SB Conn to I-205 NB carry?

About 18,656 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is I-5 NB to I-205 NB over I-5 SB Conn to I-205 NB?

The structure is 235 ft (71.6 m) long with a longest span of 115 ft (35.1 m) and a deck 44 ft wide.

Who owns I-5 NB to I-205 NB over I-5 SB Conn to I-205 NB?

It is owned by the State Highway Agency.