US Bridges

Ferry Traffic over Puget Sound @ Seattle

Fair

King County, Washington · W End Marion ST · Structure no. 0009013A0000000

Built
1971
54 years old, rebuilt 1993
Condition
Fair
inspected June 2024
Type
Movable - Lift
Steel
Length
105 ft
1 main span
Daily traffic
3,800
2010 count
Owner
State
State Highway Agency

About this bridge

Ferry Traffic over Puget Sound @ Seattle is a steel movable - lift carrying Ferry Traffic over Puget Sound @ Seattle in King County, Washington. It was built in 1971 and reconstructed in 1993, so it is 54 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 3,800 vehicles a day, roughly 1% of them trucks, projected to reach 4,940 by 2034. The structure is 105 ft (32 m) long and 24 ft wide.

CarriesFerry Traffic
CrossesPuget Sound @ Seattle
LocationW End Marion ST
RouteState Highway 519
Coordinates47.60206, -122.33942
Functional classUrban Other Principal 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 rating45 US tons
Inventory rating26 US tons

Structure

Structure typeMovable - Lift
MaterialSteel
DeckClosed grating
Main spans1
Design loadH 15
Structure length105 ft (32 m)
Longest span80 ft (24.4 m)
Deck width24 ft (7.3 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deck16 ft (4.9 m)

Traffic and service

Average daily traffic3,800 (2010)
Projected traffic4,940 by 2034
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollToll bridge
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$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ferry Traffic over Puget Sound @ Seattle built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 1993.

What condition is Ferry Traffic over Puget Sound @ Seattle 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 Ferry Traffic over Puget Sound @ Seattle carry?

About 3,800 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is Ferry Traffic over Puget Sound @ Seattle?

The structure is 105 ft (32 m) long with a longest span of 80 ft (24.4 m) and a deck 24 ft wide.

Who owns Ferry Traffic over Puget Sound @ Seattle?

It is owned by the State Highway Agency.