N-w Ramp over I-405 N-e Ramp

Good Condition11 years old7,291 vehicles/day

Location

StateWashington
CountyKing
Location7.9 N Jct SR 520
CarriesN-w Ramp
CrossesI-405 N-e Ramp
Coordinates47.74522, -122.18633

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure8 (Very Good)
Substructure8 (Very Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length386.2 ft (117.7 m)
Max Span131.6 ft (40.1 m)
Deck Width60.0 ft (18.3 m)
Deck Area2153.9 sq m
Main Spans3
Year Built2015

Traffic

Avg Daily Traffic7,291 (2023)
Truck Traffic3%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number0018204A0000000

Nearby Bridges

160th/brickyard RD over I-405 0.2 mi Fair I-405 over SR 522 Sammamish R 0.7 mi Fair I-405 over SR 522 Sammamish R 0.7 mi Fair I-405 N-w Ramp over Sammamish R I-405 SR 5 0.7 mi Fair I-405 N-e Ramp over Sammamish River 0.8 mi Fair S-w Ramp over Campus Way NE 0.8 mi Good SR 522 over North CR & Gillman Trail 0.8 mi Good SR 522 Ramp over Sammamish River 0.8 mi Fair SR 522 over North CR & Gillman Trail 0.8 mi Good SR 522 over North CR & Gillman Trail 0.8 mi Good