US Bridges

23 S 03 W 05.04: over Big River

Fair

Lane County, Oregon · 13.4 Miles S of I-5 (exit · Structure no. 0000000L1439133

Built
1956
69 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
42 ft
1 main span
Daily traffic
50
2024 count
Owner
Federal
Bureau of Land Management

About this bridge

23 S 03 W 05.04: over Big River is a steel stringer/multi-beam or girder carrying 23 S 03 W 05.04: over Big River 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 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, roughly 10% of them trucks, projected to reach 75 by 2044. The structure is 42 ft (12.8 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Carries23 S 03 W 05.04:
CrossesBig River
Location13.4 Miles S of I-5 (exit
RouteFederal Lands Road 0
StateOregon
Coordinates43.58494, -123.0025
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.1 US tons
Inventory rating55.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span39 ft (11.9 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic75 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Land Management
Maintained byBureau of Land Management
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 23 S 03 W 05.04: over Big River built?

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

What condition is 23 S 03 W 05.04: over Big 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 February 2024.

How much traffic does 23 S 03 W 05.04: over Big River carry?

About 50 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 23 S 03 W 05.04: over Big River?

The structure is 42 ft (12.8 m) long with a longest span of 39 ft (11.9 m) and a deck 29 ft wide.

Who owns 23 S 03 W 05.04: over Big River?

It is owned by the Bureau of Land Management.