US Bridges

Strander Blvd over Green River

FairPosted for load

King County, Washington · 0.1 MI W of SR-181 · Structure no. 085444000000000

Built
1973
52 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
206 ft
3 main spans
Daily traffic
10,269
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Strander Blvd over Green River is a prestressed concrete continuous stringer/multi-beam or girder carrying Strander Blvd over Green River in King County, Washington. It was built in 1973, so it is 52 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. Its operating status is: posted for load restriction.

It carries about 10,269 vehicles a day, roughly 20% of them trucks, projected to reach 22,000 by 2042. The structure is 206 ft (62.8 m) long and 66 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesStrander Blvd
CrossesGreen River
Location0.1 MI W of SR-181
RouteCity Street 1276
CountyKing County
StateWashington
Coordinates47.45608, -122.24617
Functional classUrban Minor Arterial

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43.5 US tons
Inventory rating26.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length206 ft (62.8 m)
Longest span102 ft (31.1 m)
Deck width66 ft (20.2 m)
Roadway width60 ft (18.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,269 (2022)
Projected traffic22,000 by 2042
Trucks20%
Lanes on structure4
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$12.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Strander Blvd over Green River built?

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

What condition is Strander Blvd over Green River 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 April 2023.

How much traffic does Strander Blvd over Green River carry?

About 10,269 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Strander Blvd over Green River?

The structure is 206 ft (62.8 m) long with a longest span of 102 ft (31.1 m) and a deck 66 ft wide.

Who owns Strander Blvd over Green River?

It is owned by the City or Municipal Highway Agency.