E-n Ramp SR 520 over I-405 & SR 520

Good Condition33 years old8,411 vehicles/day

Location

StateWashington
CountyKing
LocationJct I-405
CarriesE-n Ramp SR 520
CrossesI-405 & SR 520
Coordinates47.63131, -122.19014

Condition Ratings

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

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1111.9 ft (338.9 m)
Max Span185.0 ft (56.4 m)
Deck Width34.1 ft (10.4 m)
Deck Area3524.6 sq m
Main Spans7
Year Built1993

Traffic

Avg Daily Traffic8,411 (2023)
Truck Traffic5%
Lanes On Bridge1
Lanes Under Bridge15

Inspection & Ownership

Last Inspection924
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number0014039C0000000

Nearby Bridges

I-405 over SR 520 0.1 mi Good N-w Ramp over SR 520 0.1 mi Good I-405 over N-w Ramp 0.1 mi Fair I-405 over SR 520 0.1 mi Good I-405 over N-w Ramp 0.1 mi Good I-405 over Northup Way 0.2 mi Good SR 520 E-n Ramp over Northup Way 0.2 mi Good I-405 N-e Ramp over 116th AVE NE 0.2 mi Good SR 520 W-n Ramp over Northup Way 0.2 mi Fair I-405 over Northup Way 0.2 mi Good