Structure 13663B0000000 · Kitsap County, WA

SR 304 over Sinclair Inlet

Carries SR 304 over Sinclair Inlet, 0.4 E Jct SR 303.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT205 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

205 ft end to end, longest span 22 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.

Built199036 years old
Length205.1 ft62.5 m
Daily traffic12,807counted 2010
Last inspectedMay 2023every 24 months

Location

StateWashington
CountyKitsap
Location0.4 E Jct SR 303
CarriesSR 304
CrossesSinclair Inlet
Coordinates47.56203, -122.62500

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length205.1 ft (62.5 m)
Max Span22.0 ft (6.7 m)
Deck Width25.3 ft (7.7 m)
Deck Area481.2 sq m
Main Spans4
Year Built1990

Traffic

Avg Daily Traffic12,807 (2010)
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number0013663B0000000

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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