Road over N Santiam R

Fair

Linn County, Oregon · .2 MI SW JCT HWY 22-FS 10 · Structure no. 061804000001668

Built: 1951; 74 years old
Condition: Fair; inspected October 2024
Type: Frame; Concrete Continuous
Length: 200 ft; 3 main spans
Daily traffic: 125
Owner: Federal; U.S. Forest Service

About this bridge

Road over N Santiam R is a concrete continuous frame carrying Road over N Santiam R in Linn County, Oregon. It was built in 1951, so it is 74 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 125 vehicles a day, roughly 25% of them trucks, projected to reach 50 by 1999. The structure is 200 ft (61 m) long and 29 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

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CarriesRoad

CrossesN Santiam R

Location.2 MI SW JCT HWY 22-FS 10

RouteFederal Lands Road 10000

CountyLinn County

StateOregon

Coordinates44.708, -122.11006

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.

Component	Rating	Meaning
Deck	6 Satisfactory	Structural elements show some minor deterioration.
Superstructure	6 Satisfactory	Structural elements show some minor deterioration.
Substructure	6 Satisfactory	Structural elements show some minor deterioration.
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionOctober 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment6: Equal to present minimum criteria

Operating rating41.8 US tons

Inventory rating33.6 US tons

Structure

Structure typeFrame

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3 (+1 approach)

Design loadHS 20

Structure length200 ft (61 m)

Longest span80 ft (24.4 m)

Deck width29 ft (8.8 m)

Roadway width26 ft (7.9 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (—)

Projected traffic50 by 1999

Trucks25%

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 proposedReplacement because of substandard load-carrying capacity or roadway geometry

Estimated improvement cost$15,000

NavigationNo navigation control on waterway

Frequently asked questions

When was Road over N Santiam R built?

It was built in 1951, making it 74 years old in 2025.

What condition is Road over N 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 October 2024.

How much traffic does Road over N Santiam R carry?

About 125 vehicles per day (latest count), of which roughly 25% are trucks.

How long is Road over N Santiam R?

The structure is 200 ft (61 m) long with a longest span of 80 ft (24.4 m) and a deck 29 ft wide.

Who owns Road over N Santiam R?

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