US Bridges

NW Buchanan Ave over Dixon Creek

Good

Benton County, Oregon · W of NW 13th ST · Structure no. 07T12A000000000

Built
1981
44 years old
Condition
Good
inspected July 2024
Type
Slab
Prestressed Concrete
Length
39 ft
1 main span
Daily traffic
7,698
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

NW Buchanan Ave over Dixon Creek is a prestressed concrete slab carrying NW Buchanan Ave over Dixon Creek in Benton County, Oregon. It was built in 1981, so it is 44 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,698 vehicles a day, roughly 10% of them trucks, projected to reach 9,548 by 2040. The structure is 39 ft (11.9 m) long and 54 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesNW Buchanan Ave
CrossesDixon Creek
LocationW of NW 13th ST
RouteCity Street 0
StateOregon
Coordinates44.5761, -123.26759
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating57.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span36 ft (11 m)
Deck width54 ft (16.6 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,698 (2020)
Projected traffic9,548 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 NW Buchanan Ave over Dixon Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is NW Buchanan Ave over Dixon Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does NW Buchanan Ave over Dixon Creek carry?

About 7,698 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is NW Buchanan Ave over Dixon Creek?

The structure is 39 ft (11.9 m) long with a longest span of 36 ft (11 m) and a deck 54 ft wide.

Who owns NW Buchanan Ave over Dixon Creek?

It is owned by the City or Municipal Highway Agency.