US Bridges

Road over Sheep CR

Fair

Linn County, Oregon · .4 SE JCT 20-FS 2044 · Structure no. 061803000001489

Built
1960
65 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
98 ft
3 main spans
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Road over Sheep CR is a concrete continuous stringer/multi-beam or girder carrying Road over Sheep CR in Linn County, Oregon. It was built in 1960, so it is 65 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 98 ft (29.9 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
CrossesSheep CR
Location.4 SE JCT 20-FS 2044
RouteFederal Lands Road 20440
CountyLinn County
StateOregon
Coordinates44.39401, -122.24178
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 protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27 US tons
Inventory rating21.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length98 ft (29.9 m)
Longest span78 ft (23.8 m)
Deck width17 ft (5.2 m)
Roadway width14 ft (4.3 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 Sheep CR built?

It was built in 1960, making it 65 years old in 2025.

What condition is Road over Sheep 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 October 2024.

How much traffic does Road over Sheep CR carry?

About 50 vehicles per day (latest count).

How long is Road over Sheep CR?

The structure is 98 ft (29.9 m) long with a longest span of 78 ft (23.8 m) and a deck 17 ft wide.

Who owns Road over Sheep CR?

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