Road over Quentin CR

Fair

Linn County, Oregon · 8.8 N of HWY 126 on FS-15 · Structure no. 061801000001632

Built: 1959; 66 years old
Condition: Fair; inspected June 2023
Type: Frame; Concrete Continuous
Length: 125 ft; 3 main spans
Daily traffic: 50; 2006 count
Owner: Federal; U.S. Forest Service

About this bridge

Road over Quentin CR is a concrete continuous frame carrying Road over Quentin CR in Linn County, Oregon. It was built in 1959, so it is 66 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, projected to reach 75 by 2045. The structure is 125 ft (38.1 m) long and 15 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

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CarriesRoad

CrossesQuentin CR

Location8.8 N of HWY 126 on FS-15

RouteFederal Lands Road 15000

CountyLinn County

StateOregon

Coordinates44.25988, -122.21692

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	7 Good	Some minor problems.
Channel and channel protection	8 Very Good	No problems noted.

Last inspectionJune 2023

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 adequacy8: Equal to present desirable criteria

Approach roadway alignment6: Equal to present minimum criteria

Operating rating33.1 US tons

Inventory rating23 US tons

Structure

Structure typeFrame

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadOther

Structure length125 ft (38.1 m)

Longest span0 ft (0 m)

Deck width15 ft (4.6 m)

Roadway width14 ft (4.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2006)

Projected traffic75 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 Quentin CR built?

It was built in 1959, making it 66 years old in 2025.

What condition is Road over Quentin CR 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 June 2023.

How much traffic does Road over Quentin CR carry?

About 50 vehicles per day (2006 count).

How long is Road over Quentin CR?

The structure is 125 ft (38.1 m) long and a deck 15 ft wide.

Who owns Road over Quentin CR?

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