Structure 14372B0000000 · Snohomish County, WA

SR 526 E-n Ramp over I-5 Broadway AVE

Carries SR 526 E-n Ramp over I-5 Broadway AVE, Jct I-5 & SR 527.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,043 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

1,043 ft end to end, longest span 221 ft: about 2.9 football fields. 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.

Built199531 years old
Length1043.0 ft317.9 m
Daily traffic15,235counted 2023
Last inspectedSeptember 2023every 24 months

Location

StateWashington
CountySnohomish
LocationJct I-5 & SR 527
CarriesSR 526 E-n Ramp
CrossesI-5 Broadway AVE
Coordinates47.92058, -122.20819

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1043.0 ft (317.9 m)
Max Span221.1 ft (67.4 m)
Deck Width28.9 ft (8.8 m)
Deck Area2797.5 sq m
Main Spans5
Year Built1995

Traffic

Avg Daily Traffic15,235 (2023)
Truck Traffic5%
Lanes On Bridge1
Lanes Under Bridge17

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number0014372B0000000

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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