US Bridges

Oak ST over Bnrr & Hendrickson DR

Fair

Cowlitz County, Washington · 0.1 MI W SR 5 · Structure no. 0008287D0000000

Built
1968
57 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
246 ft
3 main spans
Daily traffic
800
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Oak ST over Bnrr & Hendrickson DR is a prestressed concrete stringer/multi-beam or girder carrying Oak ST over Bnrr & Hendrickson DR in Cowlitz County, Washington. It was built in 1968, so it is 57 years old, older than the Washington average of 49.8 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 800 vehicles a day, roughly 25% of them trucks, projected to reach 1,050 by 2042. The structure is 246 ft (75 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesOak ST
CrossesBnrr & Hendrickson DR
Location0.1 MI W SR 5
RouteCity Street 600
CountyCowlitz County
StateWashington
Coordinates46.01806, -122.85111
Functional classUrban Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.9 US tons
Inventory rating22.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length246 ft (75 m)
Longest span95 ft (29 m)
Deck width36 ft (11 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2022)
Projected traffic1,050 by 2042
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$9.2 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Oak ST over Bnrr & Hendrickson DR built?

It was built in 1968, making it 57 years old in 2025.

What condition is Oak ST over Bnrr & Hendrickson DR 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 January 2023.

How much traffic does Oak ST over Bnrr & Hendrickson DR carry?

About 800 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is Oak ST over Bnrr & Hendrickson DR?

The structure is 246 ft (75 m) long with a longest span of 95 ft (29 m) and a deck 36 ft wide.

Who owns Oak ST over Bnrr & Hendrickson DR?

It is owned by the City or Municipal Highway Agency.