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Nearby Bridges in NBI 2021: 1


SR 513 over MONTLAKE CUT (Route: 513)
Num:000000HH0000000x
Posted for load [P]
Built: 1924, Reconstructed: 1999
Historic: Bridge is on the NRHP. [1]

Google Streetview (If Available)

Rough Distance: 0.5 Miles (0.8 Kilometers)

Bridge Type
Main Span(s): Steel [3] Movable - Bascule [16]
Approach Span(s): Concrete continuous [2] Tee beam [04]
Deck: Open Grating [3] with Wearing Surface: Other [9]
Bridge Dimensions
Length: 104.9 m = 344.2 ft
Main Spans: 1 at 47.5 m = 155.8 ft
Approach Spans: 6
Skew: 0
Width, Roadway: 12.2 m = 40.0 ft (4 Lanes) and Out-To-Out: 18.3 m = 60.0 ft for a 28.3 m = 92.9 ft approaching roadway.
Vertical Clearance: 5.36 m = 17.6 ft and Navigational Clearance: 9.1 m = 29.9 ft
Location
Unknown [00000]: King County [033], Washington [53]
Owned by State Highway Agency [01], DOT District: 1
0.2 N JCT SR 520
Condition
Deck: Fair [5]
Superstructure: Satisfactory [6]
Substructure: Satisfactory [6]
Loading
Design:
Operating: 29.9 metric ton = 32.9 tons (Load Factor(LF) [1])
Inventory: 18.1 metric ton = 19.9 tons (Load Factor(LF) [1])
Appraisal
Structural: Meets minimum tolerable limits to be left in place as is [4]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: May 2020 [0520] and Frequency: 24
Future Work
Work Needed: Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 65696 (2019) and Trucks: 3%
Future ADT: 92762 (In 2039 )

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

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