US Bridges

Ferry Traffic over Puget Sound @ Tahlequah

FairPosted for load

King County, Washington · So. End Vashon Is · Structure no. 0005814A0000000

Built
1954
71 years old, rebuilt 1994
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
282 ft
17 main spans
Daily traffic
1,106
2013 count
Owner
State
State Highway Agency

About this bridge

Ferry Traffic over Puget Sound @ Tahlequah is a wood or timber stringer/multi-beam or girder carrying Ferry Traffic over Puget Sound @ Tahlequah in King County, Washington. It was built in 1954 and reconstructed in 1994, so it is 71 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 1,106 vehicles a day, roughly 9% of them trucks, projected to reach 1,548 by 2033. The structure is 282 ft (86 m) long and 28 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesFerry Traffic
CrossesPuget Sound @ Tahlequah
LocationSo. End Vashon Is
RouteState Highway 163
Coordinates47.33292, -122.50703
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37 US tons
Inventory rating26 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans17
Design loadH 10
Structure length282 ft (86 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.5 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,106 (2013)
Projected traffic1,548 by 2033
Trucks9%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 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$1.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ferry Traffic over Puget Sound @ Tahlequah built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1994.

What condition is Ferry Traffic over Puget Sound @ Tahlequah 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 February 2024.

How much traffic does Ferry Traffic over Puget Sound @ Tahlequah carry?

About 1,106 vehicles per day (2013 count), of which roughly 9% are trucks.

How long is Ferry Traffic over Puget Sound @ Tahlequah?

The structure is 282 ft (86 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns Ferry Traffic over Puget Sound @ Tahlequah?

It is owned by the State Highway Agency.