US Bridges

Road over S Santiam R

Fair

Linn County, Oregon · 1.5 S JCT HWY 20-FS 2044 · Structure no. 061803000001490

Built
1961
64 years old
Condition
Fair
inspected September 2023
Type
Frame
Concrete Continuous
Length
120 ft
3 main spans
Daily traffic
10
2006 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over S Santiam R is a concrete continuous frame carrying Road over S Santiam R in Linn County, Oregon. It was built in 1961, so it is 64 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 10 vehicles a day, projected to reach 15 by 2045. The structure is 120 ft (36.6 m) long and 17 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

Open in Google Maps
CarriesRoad
CrossesS Santiam R
Location1.5 S JCT HWY 20-FS 2044
RouteFederal Lands Road 20440
CountyLinn County
StateOregon
Coordinates44.38543, -122.23375
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 protection7 GoodSome minor problems.
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 alignment7: Better than present minimum criteria
Operating rating33.4 US tons
Inventory rating26.8 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length120 ft (36.6 m)
Longest span80 ft (24.4 m)
Deck width17 ft (5.2 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 S Santiam R built?

It was built in 1961, making it 64 years old in 2025.

What condition is Road over S Santiam 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 2023.

How much traffic does Road over S Santiam R carry?

About 10 vehicles per day (2006 count).

How long is Road over S Santiam R?

The structure is 120 ft (36.6 m) long with a longest span of 80 ft (24.4 m) and a deck 17 ft wide.

Who owns Road over S Santiam R?

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