Structure 60506000001543 · Snohomish County, WA

Road over N.fork Skykomish River

Carries Road over N.fork Skykomish River, 16.0 Mi N Of HWY 2/65 Jct.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT130 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

130 ft end to end, longest span 85 ft. 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.

Built1959rebuilt 2008
Length129.6 ft39.5 m
Daily traffic123counted 1989
Last inspectedJune 2023every 24 months

Location

StateWashington
CountySnohomish
Location16.0 Mi N Of HWY 2/65 Jct
CarriesRoad
CrossesN.fork Skykomish River
Coordinates47.88962, -121.32545

Physical Characteristics

MaterialConcrete Continuous
DesignStringer/Multi-beam
Total Length129.6 ft (39.5 m)
Max Span85.0 ft (25.9 m)
Deck Width16.1 ft (4.9 m)
Deck Area193.6 sq m
Main Spans3
Year Built1959 (reconstructed 2008)

Traffic

Avg Daily Traffic123 (1989)
Truck Traffic2%
Lanes On Bridge1

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number060506000001543

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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