US Bridges

I-5 (hwy 001) over P&w RR

Fair

Washington County, Oregon · 1.1 MI N of Tualatin R. · Structure no. 02259C001 29097

Built
1975
50 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
168 ft
3 main spans
Daily traffic
154,838
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 001) over P&w RR is a prestressed concrete continuous stringer/multi-beam or girder carrying I-5 (hwy 001) over P&w RR in Washington 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 154,838 vehicles a day, roughly 9% of them trucks, projected to reach 177,100 by 2042. The structure is 168 ft (51.2 m) long and 145 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesI-5 (hwy 001)
CrossesP&w RR
Location1.1 MI N of Tualatin R.
RouteInterstate 5
CountyWashington County
StateOregon
Coordinates45.4032, -122.7447
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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.4 US tons
Inventory rating21.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length168 ft (51.2 m)
Longest span56 ft (17.1 m)
Deck width145 ft (44.2 m)
Roadway width140 ft (42.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic154,838 (2022)
Projected traffic177,100 by 2042
Trucks9%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-5 (hwy 001) over P&w RR built?

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

What condition is I-5 (hwy 001) over P&w RR 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 (hwy 001) over P&w RR carry?

About 154,838 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is I-5 (hwy 001) over P&w RR?

The structure is 168 ft (51.2 m) long with a longest span of 56 ft (17.1 m) and a deck 145 ft wide.

Who owns I-5 (hwy 001) over P&w RR?

It is owned by the State Highway Agency.