US Bridges

Road over Quartzville CR

Fair

Linn County, Oregon · 30 1/2 NE JCT 20-FS 11 · Structure no. 061803000001653

Built
1961
64 years old
Condition
Fair
inspected November 2023
Type
Frame
Concrete Continuous
Length
147 ft
1 main span
Daily traffic
75
Owner
Federal
U.S. Forest Service

About this bridge

Road over Quartzville CR is a concrete continuous frame carrying Road over Quartzville CR 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 5 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 75 vehicles a day, projected to reach 112 by 2045. The structure is 147 ft (44.7 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
CrossesQuartzville CR
Location30 1/2 NE JCT 20-FS 11
RouteFederal Lands Road 11000
CountyLinn County
StateOregon
Coordinates44.57282, -122.26692
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating39.2 US tons
Inventory rating25.6 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadOther
Structure length147 ft (44.7 m)
Longest span70 ft (21.3 m)
Deck width17 ft (5.2 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (—)
Projected traffic112 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 Quartzville CR built?

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

What condition is Road over Quartzville 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 November 2023.

How much traffic does Road over Quartzville CR carry?

About 75 vehicles per day (latest count).

How long is Road over Quartzville CR?

The structure is 147 ft (44.7 m) long with a longest span of 70 ft (21.3 m) and a deck 17 ft wide.

Who owns Road over Quartzville CR?

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