US Bridges

Washington Street over Trimet Lrt

Fair

Multnomah County, Oregon · 6.0 MI S Ore-Wash Line · Structure no. 20701 000 00000

Built
2007
18 years old
Condition
Fair
inspected March 2023
Type
Slab
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
59,691
2020 count
Owner
Local
Other Local Agency

About this bridge

Washington Street over Trimet Lrt is a prestressed concrete slab carrying Washington Street over Trimet Lrt in Multnomah County, Oregon. It was built in 2007, so it is 18 years old, younger 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 59,691 vehicles a day, roughly 10% of them trucks, projected to reach 76,400 by 2040. The structure is 35 ft (10.7 m) long and 73 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWashington Street
CrossesTrimet Lrt
Location6.0 MI S Ore-Wash Line
RouteCity Street 0
StateOregon
Coordinates45.5183, -122.5644
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.4 US tons
Inventory rating66.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span35 ft (10.7 m)
Deck width73 ft (22.2 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59,691 (2020)
Projected traffic76,400 by 2040
Trucks10%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local 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 Washington Street over Trimet Lrt built?

It was built in 2007, making it 18 years old in 2025.

What condition is Washington Street over Trimet Lrt 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 March 2023.

How much traffic does Washington Street over Trimet Lrt carry?

About 59,691 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Washington Street over Trimet Lrt?

The structure is 35 ft (10.7 m) long with a longest span of 35 ft (10.7 m) and a deck 73 ft wide.

Who owns Washington Street over Trimet Lrt?

It is owned by the Other Local Agency.