Structure 17417A0000000 · King County, WA

NE 10th Street over I-405

Carries NE 10th Street over I-405, 2.9 N Jct I-90.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT372 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

372 ft end to end, longest span 202 ft: about 5 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 multi-beam bridge.

Built200917 years old
Length372.0 ft113.4 m
Daily traffic15,000counted 2010
Last inspectedNovember 2023every 24 months

Location

StateWashington
CountyKing
Location2.9 N Jct I-90
CarriesNE 10th Street
CrossesI-405
Coordinates47.61928, -122.18942

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length372.0 ft (113.4 m)
Max Span202.1 ft (61.6 m)
Deck Width85.6 ft (26.1 m)
Deck Area2959.7 sq m
Main Spans2
Year Built2009

Traffic

Avg Daily Traffic15,000 (2010)
Truck Traffic4%
Lanes On Bridge5
Lanes Under Bridge14

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number0017417A0000000

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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