US Bridges

Courtney Lane over Willow Creek EB

Poor

Union County, Oregon · 2.8 MI E Summerville Road · Structure no. 09580 135 00276

Built
1966
59 years old
Condition
Poor
inspected September 2023
Type
Slab
Prestressed Concrete
Length
105 ft
3 main spans
Daily traffic
286
2020 count
Owner
County
County Highway Agency

About this bridge

Courtney Lane over Willow Creek EB is a prestressed concrete slab carrying Courtney Lane over Willow Creek EB in Union County, Oregon. It was built in 1966, so it is 59 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 286 vehicles a day, roughly 8% of them trucks, projected to reach 341 by 2025. The structure is 105 ft (32 m) long and 36 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCourtney Lane
CrossesWillow Creek EB
Location2.8 MI E Summerville Road
RouteCounty Highway 0
StateOregon
Coordinates45.49603, -117.95216
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating64.6 US tons
Inventory rating50 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length105 ft (32 m)
Longest span35 ft (10.7 m)
Deck width36 ft (10.9 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic286 (2020)
Projected traffic341 by 2025
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Courtney Lane over Willow Creek EB built?

It was built in 1966, making it 59 years old in 2025.

What condition is Courtney Lane over Willow Creek EB in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.

How much traffic does Courtney Lane over Willow Creek EB carry?

About 286 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is Courtney Lane over Willow Creek EB?

The structure is 105 ft (32 m) long with a longest span of 35 ft (10.7 m) and a deck 36 ft wide.

Who owns Courtney Lane over Willow Creek EB?

It is owned by the County Highway Agency.