US Bridges

Airport DR over Oak Creek

Fair

Linn County, Oregon · 002 MI East of CR 708 · Structure no. 12652 070700131

Built
1970
55 years old, rebuilt 1996
Condition
Fair
inspected June 2023
Type
Slab
Prestressed Concrete
Length
65 ft
2 main spans
Daily traffic
7,004
2021 count
Owner
County
County Highway Agency

About this bridge

Airport DR over Oak Creek is a prestressed concrete slab carrying Airport DR over Oak Creek in Linn County, Oregon. It was built in 1970 and reconstructed in 1996, so it is 55 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 7,004 vehicles a day, roughly 15% of them trucks, projected to reach 9,785 by 2041. The structure is 65 ft (19.8 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesAirport DR
CrossesOak Creek
Location002 MI East of CR 708
RouteCounty Highway A0481
StateOregon
Coordinates44.52663, -122.94775
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.1 US tons
Inventory rating27.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length65 ft (19.8 m)
Longest span32 ft (9.8 m)
Deck width36 ft (11 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,004 (2021)
Projected traffic9,785 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Airport DR over Oak Creek built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1996.

What condition is Airport DR over Oak 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 June 2023.

How much traffic does Airport DR over Oak Creek carry?

About 7,004 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is Airport DR over Oak Creek?

The structure is 65 ft (19.8 m) long with a longest span of 32 ft (9.8 m) and a deck 36 ft wide.

Who owns Airport DR over Oak Creek?

It is owned by the County Highway Agency.