US Bridges

Road over Mckenzie R

Good

Lane County, Oregon · At JCT HWY 126-FS 2618 · Structure no. 061801000001366

Built
1969
56 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
303 ft
3 main spans
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Road over Mckenzie R is a prestressed concrete stringer/multi-beam or girder carrying Road over Mckenzie R in Lane County, Oregon. It was built in 1969, so it is 56 years old, older 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 303 ft (92.4 m) long and 22 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesRoad
CrossesMckenzie R
LocationAt JCT HWY 126-FS 2618
RouteFederal Lands Road 26180
StateOregon
Coordinates44.12825, -122.38015
Functional classRural Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating32.1 US tons
Inventory rating28 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length303 ft (92.4 m)
Longest span125 ft (38.1 m)
Deck width22 ft (6.8 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road over Mckenzie R built?

It was built in 1969, making it 56 years old in 2025.

What condition is Road over Mckenzie R 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 May 2024.

How much traffic does Road over Mckenzie R carry?

About 50 vehicles per day (latest count).

How long is Road over Mckenzie R?

The structure is 303 ft (92.4 m) long with a longest span of 125 ft (38.1 m) and a deck 22 ft wide.

Who owns Road over Mckenzie R?

It is owned by the U.S. Forest Service.