US Bridges

SW Brooklane Dr. over Dunawi Creek

Fair

Benton County, Oregon · 0.20 S.Of HWY 20/34 · Structure no. 03C26 000

Built
1987
38 years old
Condition
Fair
inspected July 2024
Type
Slab
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
1,795
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

SW Brooklane Dr. over Dunawi Creek is a prestressed concrete slab carrying SW Brooklane Dr. over Dunawi Creek in Benton County, Oregon. It was built in 1987, so it is 38 years old, younger 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 1,795 vehicles a day, roughly 10% of them trucks, projected to reach 2,546 by 2040. The structure is 41 ft (12.5 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSW Brooklane Dr.
CrossesDunawi Creek
Location0.20 S.Of HWY 20/34
RouteCity Street 0
StateOregon
Coordinates44.55275, -123.2796
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.9 US tons
Inventory rating76.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length41 ft (12.5 m)
Longest span40 ft (12.2 m)
Deck width48 ft (14.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,795 (2020)
Projected traffic2,546 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 SW Brooklane Dr. over Dunawi Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is SW Brooklane Dr. over Dunawi 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 July 2024.

How much traffic does SW Brooklane Dr. over Dunawi Creek carry?

About 1,795 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is SW Brooklane Dr. over Dunawi Creek?

The structure is 41 ft (12.5 m) long with a longest span of 40 ft (12.2 m) and a deck 48 ft wide.

Who owns SW Brooklane Dr. over Dunawi Creek?

It is owned by the City or Municipal Highway Agency.