US Bridges

Port. Mil Lt Rail over Willamette River

Fair

Multnomah County, Oregon · Willamette River MP 13.2 · Structure no. 22258 000 00000

Built
2015
10 years old
Condition
Fair
inspected June 2023
Type
Stayed Girder
Prestressed Concrete Continuous
Length
1,720 ft
3 main spans
Daily traffic
630
2020 count
Owner
Local
Other Local Agency

About this bridge

Port. Mil Lt Rail over Willamette River is a prestressed concrete continuous stayed girder carrying Port. Mil Lt Rail over Willamette River in Multnomah County, Oregon. It was built in 2015, so it is 10 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 630 vehicles a day, projected to reach 695 by 2025. The structure is 1,720 ft (524.3 m) long and 75 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesPort. Mil Lt Rail
CrossesWillamette River
LocationWillamette River MP 13.2
RouteCity Street 0
CountyMultnomah County
StateOregon
Coordinates45.5048, -122.6671
Functional classUrban Collector

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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.2 US tons
Inventory rating68.2 US tons

Structure

Structure typeStayed Girder
MaterialPrestressed Concrete Continuous
DeckOpen grating
Main spans3 (+2 approach)
Design loadHL 93
Structure length1,720 ft (524.3 m)
Longest span780 ft (237.7 m)
Deck width75 ft (23 m)
Roadway width42 ft (12.7 m)
Vertical clearance over deck16 ft (4.8 m)

Traffic and service

Average daily traffic630 (2020)
Projected traffic695 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
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 statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Port. Mil Lt Rail over Willamette River built?

It was built in 2015, making it 10 years old in 2025.

What condition is Port. Mil Lt Rail over Willamette River 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 June 2023.

How much traffic does Port. Mil Lt Rail over Willamette River carry?

About 630 vehicles per day (2020 count).

How long is Port. Mil Lt Rail over Willamette River?

The structure is 1,720 ft (524.3 m) long with a longest span of 780 ft (237.7 m) and a deck 75 ft wide.

Who owns Port. Mil Lt Rail over Willamette River?

It is owned by the Other Local Agency.