Structure 84354000000000 · Snohomish County, WA

Scherrer RD over Cattle Pass

Carries Scherrer RD over Cattle Pass, 3.1 SE Jct SR 92.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT88 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

88 ft end to end, longest span 20 ft. 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 multi-beam bridge.

Built198541 years old
Length88.3 ft26.9 m
Daily traffic42counted 2021
Last inspectedAugust 2023every 24 months

Location

StateWashington
CountySnohomish
Location3.1 SE Jct SR 92
CarriesScherrer RD
CrossesCattle Pass
Coordinates48.04410, -121.94460

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length88.3 ft (26.9 m)
Max Span20.0 ft (6.1 m)
Deck Width22.0 ft (6.7 m)
Deck Area180.2 sq m
Main Spans5
Year Built1985

Traffic

Avg Daily Traffic42 (2021)
Truck Traffic19%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number084354000000000

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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