US Bridges

NW Grant ST over Dixon CR

Poor

Benton County, Oregon · E of NW 17th ST · Structure no. 07T10 000 00030

Built
1967
58 years old
Condition
Poor
inspected July 2024
Type
Slab
Prestressed Concrete
Length
24 ft
1 main span
Daily traffic
4,100
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

NW Grant ST over Dixon CR is a prestressed concrete slab carrying NW Grant ST over Dixon CR in Benton 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 poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 4,100 vehicles a day, roughly 10% of them trucks, projected to reach 4,510 by 2040. The structure is 24 ft (7.3 m) long and 49 ft wide.

CarriesNW Grant ST
CrossesDixon CR
LocationE of NW 17th ST
RouteCity Street 0
StateOregon
Coordinates44.57957, -123.26981
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating44 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadH 20
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width49 ft (14.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,100 (2020)
Projected traffic4,510 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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 Grant ST over Dixon CR built?

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

What condition is NW Grant ST over Dixon CR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does NW Grant ST over Dixon CR carry?

About 4,100 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is NW Grant ST over Dixon CR?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 49 ft wide.

Who owns NW Grant ST over Dixon CR?

It is owned by the City or Municipal Highway Agency.