US Bridges

Oak ST over Amazon Channel

Fair

Lane County, Oregon · Eugene 17&OAK&AMAZON · Structure no. 40014 000 00083

Built
1949
76 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
15,439
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Oak ST over Amazon Channel is a concrete continuous culvert carrying Oak ST over Amazon Channel in Lane County, Oregon. It was built in 1949, so it is 76 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 15,439 vehicles a day, roughly 10% of them trucks, projected to reach 16,189 by 2025. The structure is 21 ft (6.4 m) long and 53 ft wide.

Location

Open in Google Maps
CarriesOak ST
CrossesAmazon Channel
LocationEugene 17&OAK&AMAZON
RouteCity Street U1135
CountyLane County
StateOregon
Coordinates44.04146, -123.09121
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating26.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width53 ft (16.2 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,439 (2020)
Projected traffic16,189 by 2025
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Oak ST over Amazon Channel built?

It was built in 1949, making it 76 years old in 2025.

What condition is Oak ST over Amazon Channel 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 May 2023.

How much traffic does Oak ST over Amazon Channel carry?

About 15,439 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Oak ST over Amazon Channel?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 53 ft wide.

Who owns Oak ST over Amazon Channel?

It is owned by the City or Municipal Highway Agency.