US Bridges

Road over M Fk Willamette R

Good

Lane County, Oregon · 1/2 S JCT 58-FS 23 ---- · Structure no. 061805000001460

Built
1956
69 years old
Condition
Good
inspected September 2024
Type
Frame
Concrete Continuous
Length
152 ft
1 main span
Daily traffic
10
2006 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over M Fk Willamette R is a concrete continuous frame carrying Road over M Fk Willamette R in Lane County, Oregon. It was built in 1956, so it is 69 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 10 vehicles a day, projected to reach 15 by 2045. The structure is 152 ft (46.3 m) long and 19 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

Open in Google Maps
CarriesRoad
CrossesM Fk Willamette R
Location1/2 S JCT 58-FS 23 ----
RouteFederal Lands Road 21330
CountyLane County
StateOregon
Coordinates43.49846, -122.40214
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71.1 US tons
Inventory rating57.1 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadOther
Structure length152 ft (46.3 m)
Longest span80 ft (24.4 m)
Deck width19 ft (5.8 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2006)
Projected traffic15 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 M Fk Willamette R built?

It was built in 1956, making it 69 years old in 2025.

What condition is Road over M Fk Willamette 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 September 2024.

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

About 10 vehicles per day (2006 count).

How long is Road over M Fk Willamette R?

The structure is 152 ft (46.3 m) long with a longest span of 80 ft (24.4 m) and a deck 19 ft wide.

Who owns Road over M Fk Willamette R?

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