US Bridges

Mckenzie Lane over Willow Creek EB

Good

Union County, Oregon · 1.6 MI W Summerville Road · Structure no. 15500A014 00159

Built
1980
45 years old
Condition
Good
inspected September 2023
Type
Slab
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
561
2020 count
Owner
County
County Highway Agency

About this bridge

Mckenzie Lane over Willow Creek EB is a prestressed concrete slab carrying Mckenzie Lane over Willow Creek EB in Union County, Oregon. It was built in 1980, so it is 45 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 561 vehicles a day, roughly 5% of them trucks, projected to reach 576 by 2025. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesMckenzie Lane
CrossesWillow Creek EB
Location1.6 MI W Summerville Road
RouteCounty Highway 0
StateOregon
Coordinates45.486, -118.0321
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating28.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span43 ft (13.1 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic561 (2020)
Projected traffic576 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Mckenzie Lane over Willow Creek EB built?

It was built in 1980, making it 45 years old in 2025.

What condition is Mckenzie Lane over Willow Creek EB in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

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

About 561 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Mckenzie Lane over Willow Creek EB?

The structure is 45 ft (13.7 m) long with a longest span of 43 ft (13.1 m) and a deck 28 ft wide.

Who owns Mckenzie Lane over Willow Creek EB?

It is owned by the County Highway Agency.