Structure 87687000000000 · Snohomish County, WA

41st St. over Bnsf Rr & Maple ST

Carries 41st St. over Bnsf Rr & Maple ST, 0.1 E Jct I-5.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT263 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

263 ft end to end, longest span 106 ft: about 4 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.

Built200620 years old
Length263.5 ft80.3 m
Daily traffic2,328counted 2022
Last inspectedNovember 2024every 24 months

Location

StateWashington
CountySnohomish
Location0.1 E Jct I-5
Carries41st St.
CrossesBnsf Rr & Maple ST
Coordinates47.96393, -122.19523

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length263.5 ft (80.3 m)
Max Span105.6 ft (32.2 m)
Deck Width71.5 ft (21.8 m)
Deck Area1750.5 sq m
Main Spans3
Year Built2006

Traffic

Avg Daily Traffic2,328 (2022)
Truck Traffic5%
Lanes On Bridge4

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number087687000000000

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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