Structure 88563000000000 · Kitsap County, WA

Miami Beach Rd. NW over Seabeck Creek

Carries Miami Beach Rd. NW over Seabeck Creek, 0.11 W Miami Beach Rd. NW.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT57 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

57 ft end to end. Lengths and the car 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.

Built201313 years old
Length57.1 ft17.4 m
Daily traffic2,671counted 2023
Last inspectedJune 2024every 24 months

Location

StateWashington
CountyKitsap
Location0.11 W Miami Beach Rd. NW
CarriesMiami Beach Rd. NW
CrossesSeabeck Creek
Coordinates47.63488, -122.83641

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length57.1 ft (17.4 m)
Max Span47.9 ft (14.6 m)
Deck Width36.7 ft (11.2 m)
Deck Area194.9 sq m
Main Spans1
Year Built2013

Traffic

Avg Daily Traffic2,671 (2023)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number088563000000000

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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