N-n Ramp over I-5

Good Condition20 years old9,786 vehicles/day

Location

StateWashington
CountySnohomish
Location3.1 N Jct SR 527
CarriesN-n Ramp
CrossesI-5
Coordinates47.95866, -122.19904

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length1323.2 ft (403.3 m)
Max Span256.9 ft (78.3 m)
Deck Width29.5 ft (9 m)
Deck Area3629.7 sq m
Main Spans2
Year Built2006

Traffic

Avg Daily Traffic9,786 (2023)
Truck Traffic10%
Lanes On Bridge1
Lanes Under Bridge12

Inspection & Ownership

Last Inspection723
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number0016991A0000000

Nearby Bridges