US Bridges

Ferry Traffic over Puget Sound @ Seattle

Good

King County, Washington · W End Marion ST · Structure no. 0013697A0000000

Built
1990
35 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete
Length
90 ft
34 main spans
Daily traffic
10,212
2010 count
Owner
State
State Highway Agency

About this bridge

Ferry Traffic over Puget Sound @ Seattle is a concrete slab carrying Ferry Traffic over Puget Sound @ Seattle in King County, Washington. It was built in 1990, so it is 35 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,212 vehicles a day, roughly 1% of them trucks, projected to reach 12,254 by 2034. The structure is 90 ft (27.4 m) long and 24 ft wide. If it were closed, the detour would be 67.7 mi (109 km).

CarriesFerry Traffic
CrossesPuget Sound @ Seattle
LocationW End Marion ST
RouteState Highway 519
Coordinates47.60211, -122.33792
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating40 US tons
Inventory rating24 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans34
Design loadHS 20 + Mod
Structure length90 ft (27.4 m)
Longest span90 ft (27.4 m)
Deck width24 ft (7.3 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,212 (2010)
Projected traffic12,254 by 2034
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed67.7 mi (109 km)
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$2.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ferry Traffic over Puget Sound @ Seattle built?

It was built in 1990, making it 35 years old in 2025.

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

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

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

About 10,212 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is Ferry Traffic over Puget Sound @ Seattle?

The structure is 90 ft (27.4 m) long with a longest span of 90 ft (27.4 m) and a deck 24 ft wide.

Who owns Ferry Traffic over Puget Sound @ Seattle?

It is owned by the State Highway Agency.