US Bridges

Road over Mid Fk Willamette R

Fair

Lane County, Oregon · .5 SE JCT 58-FS 23-S #21 · Structure no. 061805000001464

Built
1958
67 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
387 ft
5 main spans
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Road over Mid Fk Willamette R is a steel stringer/multi-beam or girder carrying Road over Mid Fk Willamette R in Lane County, Oregon. It was built in 1958, so it is 67 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 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 387 ft (117.9 m) long and 30 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

Open in Google Maps
CarriesRoad
CrossesMid Fk Willamette R
Location.5 SE JCT 58-FS 23-S #21
RouteFederal Lands Road 21000
CountyLane County
StateOregon
Coordinates43.61465, -122.44589
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating100.1 US tons
Inventory rating100.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadOther
Structure length387 ft (117.9 m)
Longest span76 ft (23.3 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-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 Mid Fk Willamette R built?

It was built in 1958, making it 67 years old in 2025.

What condition is Road over Mid Fk Willamette R 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 September 2024.

How much traffic does Road over Mid Fk Willamette R carry?

About 50 vehicles per day (latest count).

How long is Road over Mid Fk Willamette R?

The structure is 387 ft (117.9 m) long with a longest span of 76 ft (23.3 m) and a deck 30 ft wide.

Who owns Road over Mid Fk Willamette R?

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