US Bridges

Brownsville Road over Cochran Creek

Fair

Linn County, Oregon · 020 Miles No Brownsville · Structure no. 12622 042500207

Built
1999
26 years old
Condition
Fair
inspected May 2023
Type
Slab
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
1,700
2021 count
Owner
County
County Highway Agency

About this bridge

Brownsville Road over Cochran Creek is a prestressed concrete slab carrying Brownsville Road over Cochran Creek in Linn County, Oregon. It was built in 1999, so it is 26 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 1,700 vehicles a day, roughly 10% of them trucks, projected to reach 2,369 by 2041. The structure is 41 ft (12.5 m) long and 36 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesBrownsville Road
CrossesCochran Creek
Location020 Miles No Brownsville
RouteCounty Highway A0481
CountyLinn County
StateOregon
Coordinates44.4269, -122.99033
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating42.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span38 ft (11.6 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2021)
Projected traffic2,369 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 Brownsville Road over Cochran Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is Brownsville Road over Cochran Creek 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 May 2023.

How much traffic does Brownsville Road over Cochran Creek carry?

About 1,700 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Brownsville Road over Cochran Creek?

The structure is 41 ft (12.5 m) long with a longest span of 38 ft (11.6 m) and a deck 36 ft wide.

Who owns Brownsville Road over Cochran Creek?

It is owned by the County Highway Agency.