US Bridges

Bridge Street over Mckenzie River

FairPosted for load

Lane County, Oregon · 15.0 MI E of Springfield · Structure no. 39C111106000021

Built
1965
60 years old, rebuilt 1994
Condition
Fair
inspected August 2024
Type
Truss - Thru
Steel
Length
409 ft
1 main span
Daily traffic
1,463
2020 count
Owner
County
County Highway Agency

About this bridge

Bridge Street over Mckenzie River is a steel truss - thru carrying Bridge Street over Mckenzie River in Lane County, Oregon. It was built in 1965 and reconstructed in 1994, so it is 60 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for other load-capacity restriction.

It carries about 1,463 vehicles a day, roughly 10% of them trucks, projected to reach 1,618 by 2025. The structure is 409 ft (124.7 m) long and 20 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesBridge Street
CrossesMckenzie River
Location15.0 MI E of Springfield
RouteCounty Highway C1060
StateOregon
Coordinates44.09136, -122.71544
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating24.7 US tons
Inventory rating19 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+5 approach)
Design loadHS 20
Structure length409 ft (124.7 m)
Longest span160 ft (48.8 m)
Deck width20 ft (6.2 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic1,463 (2020)
Projected traffic1,618 by 2025
Trucks10%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$2.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Bridge Street over Mckenzie River built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1994.

What condition is Bridge Street over Mckenzie River 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 August 2024.

How much traffic does Bridge Street over Mckenzie River carry?

About 1,463 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Bridge Street over Mckenzie River?

The structure is 409 ft (124.7 m) long with a longest span of 160 ft (48.8 m) and a deck 20 ft wide.

Who owns Bridge Street over Mckenzie River?

It is owned by the County Highway Agency.