US Bridges

Or 58 (hwy 018)FR over Willamette River

FairPosted for load

Lane County, Oregon · 033 MI W Oakridge · Structure no. 01626 018F03176

Built
1932
93 years old
Condition
Fair
inspected April 2024
Type
Truss - Thru
Steel
Length
506 ft
2 main spans
Daily traffic
525
2022 count
Owner
State
State Highway Agency

About this bridge

Or 58 (hwy 018)FR over Willamette River is a steel truss - thru carrying Or 58 (hwy 018)FR over Willamette River in Lane County, Oregon. It was built in 1932, so it is 93 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. Its operating status is: posted for other load-capacity restriction.

It carries about 525 vehicles a day, roughly 16% of them trucks, projected to reach 410 by 2030. The structure is 506 ft (154.2 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesOr 58 (hwy 018)FR
CrossesWillamette River
Location033 MI W Oakridge
RouteState Highway 58
CountyLane County
StateOregon
Coordinates43.75482, -122.52673
Functional classRural Major 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.4 US tons
Inventory rating16.4 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans2 (+5 approach)
Design loadH 15
Structure length506 ft (154.2 m)
Longest span160 ft (48.8 m)
Deck width29 ft (8.8 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deck15 ft (4.5 m)

Traffic and service

Average daily traffic525 (2022)
Projected traffic410 by 2030
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Or 58 (hwy 018)FR over Willamette River built?

It was built in 1932, making it 93 years old in 2025.

What condition is Or 58 (hwy 018)FR 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 April 2024.

How much traffic does Or 58 (hwy 018)FR over Willamette River carry?

About 525 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is Or 58 (hwy 018)FR over Willamette River?

The structure is 506 ft (154.2 m) long with a longest span of 160 ft (48.8 m) and a deck 29 ft wide.

Who owns Or 58 (hwy 018)FR over Willamette River?

It is owned by the State Highway Agency.