US Bridges

Cochran CR DR over Cochran CR

FairPosted for load

Linn County, Oregon · 009 MI E CR 425 · Structure no. 12621 074000094

Built
1963
62 years old
Condition
Fair
inspected October 2024
Type
Slab
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
82
2021 count
Owner
County
County Highway Agency

About this bridge

Cochran CR DR over Cochran CR is a prestressed concrete slab carrying Cochran CR DR over Cochran CR in Linn County, Oregon. It was built in 1963, so it is 62 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. Its operating status is: posted for load restriction.

It carries about 82 vehicles a day, projected to reach 113 by 2041. The structure is 30 ft (9.1 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCochran CR DR
CrossesCochran CR
Location009 MI E CR 425
RouteCounty Highway C0740
StateOregon
Coordinates44.42828, -122.97158
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating19.3 US tons
Inventory rating15 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span29 ft (8.8 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic82 (2021)
Projected traffic113 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Cochran CR DR over Cochran CR built?

It was built in 1963, making it 62 years old in 2025.

What condition is Cochran CR DR over Cochran 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 Cochran CR DR over Cochran CR carry?

About 82 vehicles per day (2021 count).

How long is Cochran CR DR over Cochran CR?

The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.8 m) and a deck 24 ft wide.

Who owns Cochran CR DR over Cochran CR?

It is owned by the County Highway Agency.