US Bridges

Road over S Santiam Riv

Fair

Linn County, Oregon · .1 S JCT SR 20-FS 2032 · Structure no. 061803000001521

Built
1967
58 years old
Condition
Fair
inspected September 2023
Type
Frame
Concrete Continuous
Length
140 ft
1 main span
Daily traffic
5
2006 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over S Santiam Riv is a concrete continuous frame carrying Road over S Santiam Riv in Linn County, Oregon. It was built in 1967, so it is 58 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 5 vehicles a day, projected to reach 7 by 2045. The structure is 140 ft (42.7 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
CrossesS Santiam Riv
Location.1 S JCT SR 20-FS 2032
RouteFederal Lands Road 20006
CountyLinn County
StateOregon
Coordinates44.39965, -122.34121
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 2023
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.7 US tons
Inventory rating25.7 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadOther
Structure length140 ft (42.7 m)
Longest span72 ft (21.8 m)
Deck width19 ft (5.8 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2006)
Projected traffic7 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 S Santiam Riv built?

It was built in 1967, making it 58 years old in 2025.

What condition is Road over S Santiam Riv 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 2023.

How much traffic does Road over S Santiam Riv carry?

About 5 vehicles per day (2006 count).

How long is Road over S Santiam Riv?

The structure is 140 ft (42.7 m) long with a longest span of 72 ft (21.8 m) and a deck 19 ft wide.

Who owns Road over S Santiam Riv?

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