SR 513 over Montlake Cut

Fair Condition102 years old55,497 vehicles/day

Location

StateWashington
CountyKing
Location0.2 N Jct SR 520
CarriesSR 513
CrossesMontlake Cut
Coordinates47.64692, -122.30461

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel
DesignMovable - Bascule
Total Length344.2 ft (104.9 m)
Max Span155.8 ft (47.5 m)
Deck Width60.0 ft (18.3 m)
Deck Area1919.7 sq m
Main Spans1
Year Built1924 (reconstructed 2021)

Traffic

Avg Daily Traffic55,497 (2023)
Truck Traffic3%
Lanes On Bridge4

Inspection & Ownership

Last Inspection424
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Structure Number000000HH0000000

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