Road over Quartz CR

Fair

Lane County, Oregon · No Data Entered · Structure no. 061801000001347

Built: 1976; 49 years old
Condition: Fair; inspected November 2023
Type: Slab; Prestressed Concrete
Length: 59 ft; 1 main span
Daily traffic: 50
Owner: Federal; U.S. Forest Service

About this bridge

Road over Quartz CR is a prestressed concrete slab carrying Road over Quartz CR in Lane County, Oregon. It was built in 1976, so it is 49 years old, younger 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 59 ft (17.9 m) long and 20 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

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CarriesRoad

CrossesQuartz CR

LocationNo Data Entered

RouteFederal Lands Road 26183

CountyLane County

StateOregon

Coordinates44.02085, -122.30471

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	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	6 Satisfactory	Structural elements show some minor deterioration.
Channel and channel protection	3 Serious	Loss of section, deterioration, spalling or scour have seriously affected primary structural components.

Last inspectionNovember 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 geometry4: Meets minimum tolerable limits to be left in place as is

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action

Operating rating68 US tons

Inventory rating37 US tons

Structure

Structure typeSlab

MaterialPrestressed Concrete

DeckOther

Main spans1

Design loadHS 20

Structure length59 ft (17.9 m)

Longest span58 ft (17.7 m)

Deck width20 ft (6.1 m)

Roadway width18 ft (5.5 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)

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 Quartz CR built?

It was built in 1976, making it 49 years old in 2025.

What condition is Road over Quartz 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 Quartz CR carry?

About 50 vehicles per day (latest count).

How long is Road over Quartz CR?

The structure is 59 ft (17.9 m) long with a longest span of 58 ft (17.7 m) and a deck 20 ft wide.

Who owns Road over Quartz CR?

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