US Bridges

Cooper Road over Crooks Creek

Fair

Linn County, Oregon · 035MI West I5 · Structure no. 12774 0302 239

Built
1967
58 years old
Condition
Fair
inspected October 2024
Type
Slab
Prestressed Concrete
Length
61 ft
2 main spans
Daily traffic
93
2021 count
Owner
County
County Highway Agency

About this bridge

Cooper Road over Crooks Creek is a prestressed concrete slab carrying Cooper Road over Crooks Creek in Linn County, Oregon. It was built in 1967, so it is 58 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 93 vehicles a day, projected to reach 129 by 2041. The structure is 61 ft (18.6 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCooper Road
CrossesCrooks Creek
Location035MI West I5
RouteCounty Highway C0302
CountyLinn County
StateOregon
Coordinates44.73016, -123.11934
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50.7 US tons
Inventory rating30.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span30 ft (9.1 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic93 (2021)
Projected traffic129 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Cooper Road over Crooks Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is Cooper Road over Crooks 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 October 2024.

How much traffic does Cooper Road over Crooks Creek carry?

About 93 vehicles per day (2021 count).

How long is Cooper Road over Crooks Creek?

The structure is 61 ft (18.6 m) long with a longest span of 30 ft (9.1 m) and a deck 24 ft wide.

Who owns Cooper Road over Crooks Creek?

It is owned by the County Highway Agency.