US Bridges

195th ST over I-405

Fair

King County, Washington · 0.8 N JCT SR 522 · Structure no. 0008286A0000000

Built
1968
57 years old, rebuilt 1998
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
252 ft
4 main spans
Daily traffic
19,064
2008 count
Owner
State
State Highway Agency

About this bridge

195th ST over I-405 is a prestressed concrete continuous stringer/multi-beam or girder carrying 195th ST over I-405 in King County, Washington. It was built in 1968 and reconstructed in 1998, 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 19,064 vehicles a day, roughly 6% of them trucks. The structure is 252 ft (76.8 m) long and 78 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries195th ST
CrossesI-405
Location0.8 N JCT SR 522
RouteCity Street 0
Coordinates47.76856, -122.19
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.9 US tons
Inventory rating38 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length252 ft (76.8 m)
Longest span77 ft (23.5 m)
Deck width78 ft (23.7 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,064 (2008)
Projected traffic—
Trucks6%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$8.4 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 195th ST over I-405 built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1998.

What condition is 195th ST over I-405 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 2023.

How much traffic does 195th ST over I-405 carry?

About 19,064 vehicles per day (2008 count), of which roughly 6% are trucks.

How long is 195th ST over I-405?

The structure is 252 ft (76.8 m) long with a longest span of 77 ft (23.5 m) and a deck 78 ft wide.

Who owns 195th ST over I-405?

It is owned by the State Highway Agency.