SR 520 over Lake Washington

Good Condition3 years old19,472 vehicles/day

Location

StateWashington
CountyKing
Location0.3 E Jct SR 513
CarriesSR 520
CrossesLake Washington
Coordinates47.64477, -122.29921

Condition Ratings

Overall ConditionGood
Deck8 (Very Good)
Superstructure8 (Very Good)
Substructure8 (Very Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length6127.0 ft (1867.5 m)
Max Span160.1 ft (48.8 m)
Deck Width46.9 ft (14.3 m)
Deck Area26705.2 sq m
Main Spans40
Year Built2023

Traffic

Avg Daily Traffic19,472 (2023)
Truck Traffic3%
Lanes On Bridge3

Inspection & Ownership

Last Inspection823
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number0019015B0000000

Nearby Bridges

SR 520 over Lake Washington 0.0 mi Good SR 513 over Pedestrian Trail 0.2 mi Good SR 520 Ramp over Portage Bay 0.3 mi Fair SR 513 over Montlake Cut 0.3 mi Fair E Interlaken BLVD over 26th AVE E 0.8 mi Fair E Boston Terrace over Ravine 0.8 mi Fair SR 520 over Portage Bay 0.9 mi Fair Delmar Drive over SR 520 0.9 mi Good 10th AVE over SR 520 1.0 mi Fair I-5 over Lake Wash Ship Canal 1.1 mi Fair