Structure 19074B0000000 · King County, WA

Ferry Trafic over Puget Sound @ Seattle

Carries Ferry Trafic over Puget Sound @ Seattle, W End Marion Street.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT207 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 5/9 · sets the rating

207 ft end to end, longest span 25 ft: about 3 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built20197 years old
Length207.0 ft63.1 m
Daily traffic12,000counted 2010
Last inspectedJune 2024every 24 months

Location

StateWashington
CountyKing
LocationW End Marion Street
CarriesFerry Trafic
CrossesPuget Sound @ Seattle
Coordinates47.60289, -122.33942

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length207.0 ft (63.1 m)
Max Span24.9 ft (7.6 m)
Deck Width24.0 ft (7.3 m)
Deck Area460.6 sq m
Main Spans24
Year Built2019

Traffic

Avg Daily Traffic12,000 (2010)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number0019074B0000000

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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