US Bridges

I-5 (hwy 001) over Floodway Ditch

Fair

Lane County, Oregon · 021 MI N Eugene Scl · Structure no. 08689H001 19377

Built
1961
64 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete Continuous
Length
27 ft
3 main spans
Daily traffic
78,731
2022 count
Owner
State
State Highway Agency

About this bridge

I-5 (hwy 001) over Floodway Ditch is a concrete continuous culvert carrying I-5 (hwy 001) over Floodway Ditch in Lane County, Oregon. It was built in 1961, so it is 64 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 78,731 vehicles a day, roughly 17% of them trucks, projected to reach 97,200 by 2042. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesI-5 (hwy 001)
CrossesFloodway Ditch
Location021 MI N Eugene Scl
RouteInterstate 5
CountyLane County
StateOregon
Coordinates44.05985, -123.0494
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.4 US tons
Inventory rating69.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic78,731 (2022)
Projected traffic97,200 by 2042
Trucks17%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-5 (hwy 001) over Floodway Ditch built?

It was built in 1961, making it 64 years old in 2025.

What condition is I-5 (hwy 001) over Floodway Ditch 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 I-5 (hwy 001) over Floodway Ditch carry?

About 78,731 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is I-5 (hwy 001) over Floodway Ditch?

The structure is 27 ft (8.2 m) long with a longest span of 9 ft (2.7 m).

Who owns I-5 (hwy 001) over Floodway Ditch?

It is owned by the State Highway Agency.