US Bridges

Oak Plain DR over Creek

Fair

Linn County, Oregon · 030 MI NW Halsey · Structure no. 12299 021200097

Built
1973
52 years old
Condition
Fair
inspected May 2023
Type
Slab
Prestressed Concrete
Length
84 ft
3 main spans
Daily traffic
165
2021 count
Owner
County
County Highway Agency

About this bridge

Oak Plain DR over Creek is a prestressed concrete slab carrying Oak Plain DR over Creek in Linn County, Oregon. It was built in 1973, so it is 52 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 165 vehicles a day, roughly 5% of them trucks, projected to reach 232 by 2041. The structure is 84 ft (25.6 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesOak Plain DR
CrossesCreek
Location030 MI NW Halsey
RouteCounty Highway C0212
StateOregon
Coordinates44.41804, -123.12982
Functional classRural Minor 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 protection7 GoodSome minor problems.
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 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 rating42.1 US tons
Inventory rating32.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans3
Design loadHS 20
Structure length84 ft (25.6 m)
Longest span28 ft (8.5 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic165 (2021)
Projected traffic232 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Oak Plain DR over Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is Oak Plain DR over 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 Oak Plain DR over Creek carry?

About 165 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Oak Plain DR over Creek?

The structure is 84 ft (25.6 m) long with a longest span of 28 ft (8.5 m) and a deck 28 ft wide.

Who owns Oak Plain DR over Creek?

It is owned by the County Highway Agency.