US Bridges

W 18th Ave over Willow Creek

Fair

Lane County, Oregon · West Eugene · Structure no. 18921 123200075

Built
1999
26 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
4,906
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

W 18th Ave over Willow Creek is a concrete continuous culvert carrying W 18th Ave over Willow Creek in Lane County, Oregon. It was built in 1999, so it is 26 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 4,906 vehicles a day, roughly 10% of them trucks, projected to reach 5,604 by 2025. The structure is 22 ft (6.6 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesW 18th Ave
CrossesWillow Creek
LocationWest Eugene
RouteCity Street C1232
CountyLane County
StateOregon
Coordinates44.03841, -123.17125
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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.2 US tons
Inventory rating19.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.6 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,906 (2020)
Projected traffic5,604 by 2025
Trucks10%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 W 18th Ave over Willow Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is W 18th Ave over Willow Creek 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 July 2024.

How much traffic does W 18th Ave over Willow Creek carry?

About 4,906 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is W 18th Ave over Willow Creek?

The structure is 22 ft (6.6 m) long with a longest span of 10 ft (3 m).

Who owns W 18th Ave over Willow Creek?

It is owned by the City or Municipal Highway Agency.