US Bridges

SR 160 over Puget Sound @ Fauntleroy

FairPosted for load

King County, Washington · 3.0 W SR 509 · Structure no. 0005714A0000000

Built
1957
68 years old, rebuilt 2002
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
558 ft
37 main spans
Daily traffic
9,721
2010 count
Owner
State
State Highway Agency

About this bridge

SR 160 over Puget Sound @ Fauntleroy is a wood or timber stringer/multi-beam or girder carrying SR 160 over Puget Sound @ Fauntleroy in King County, Washington. It was built in 1957 and reconstructed in 2002, so it is 68 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 5 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 9,721 vehicles a day, roughly 1% of them trucks, projected to reach 15,281 by 2036. The structure is 558 ft (170.1 m) long and 67 ft wide. If it were closed, the detour would be 55.3 mi (89 km).

CarriesSR 160
CrossesPuget Sound @ Fauntleroy
Location3.0 W SR 509
RouteState Highway 160
Coordinates47.52322, -122.39381
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating24 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans37
Design loadH 15
Structure length558 ft (170.1 m)
Longest span16 ft (4.9 m)
Deck width67 ft (20.4 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deck17 ft (5.3 m)

Traffic and service

Average daily traffic9,721 (2010)
Projected traffic15,281 by 2036
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed55.3 mi (89 km)
TollToll bridge
National Highway SystemNo

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$10.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 160 over Puget Sound @ Fauntleroy built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2002.

What condition is SR 160 over Puget Sound @ Fauntleroy 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 June 2024.

How much traffic does SR 160 over Puget Sound @ Fauntleroy carry?

About 9,721 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is SR 160 over Puget Sound @ Fauntleroy?

The structure is 558 ft (170.1 m) long with a longest span of 16 ft (4.9 m) and a deck 67 ft wide.

Who owns SR 160 over Puget Sound @ Fauntleroy?

It is owned by the State Highway Agency.