US Bridges

HWY 061 over Willamette River

Fair

Multnomah County, Oregon · Fremont Bridge · Structure no. 02529 061 00332

Built
1973
52 years old
Condition
Fair
inspected June 2023
Type
Arch - Thru
Steel Continuous
Length
2,154 ft
3 main spans
Daily traffic
103,251
2022 count
Owner
State
State Highway Agency

About this bridge

HWY 061 over Willamette River is a steel continuous arch - thru carrying HWY 061 over Willamette River in Multnomah County, Oregon. It was built in 1973, so it is 52 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 103,251 vehicles a day, roughly 8% of them trucks, projected to reach 121,900 by 2042. The structure is 2,154 ft (656.5 m) long and 150 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesHWY 061
CrossesWillamette River
LocationFremont Bridge
RouteInterstate 405
CountyMultnomah County
StateOregon
Coordinates45.53814, -122.6831
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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating16.8 US tons
Inventory rating12.9 US tons

Structure

Structure typeArch - Thru
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length2,154 ft (656.5 m)
Longest span1,255 ft (382.5 m)
Deck width150 ft (45.7 m)
Roadway width136 ft (41.5 m)
Vertical clearance over deck17 ft (5.1 m)

Traffic and service

Average daily traffic103,251 (2022)
Projected traffic121,900 by 2042
Trucks8%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed11.8 mi (19 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 statusPossibly eligible for the National Register; requires further investigation
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$51.3 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was HWY 061 over Willamette River built?

It was built in 1973, making it 52 years old in 2025.

What condition is HWY 061 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 HWY 061 over Willamette River carry?

About 103,251 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is HWY 061 over Willamette River?

The structure is 2,154 ft (656.5 m) long with a longest span of 1,255 ft (382.5 m) and a deck 150 ft wide.

Who owns HWY 061 over Willamette River?

It is owned by the State Highway Agency.