SR 513 - Montlake Bridge - Mechanical Rehab, Deck Replacement & Joint Repair - Boating information

Marine advisory: temporary changes coming to SR 513 Montlake Bridge openings, Aug. 9 to Sept. 3
 
 With crews and equipment staged on the bridge, the following changes for boaters that require a bridge opening will be in place:  

  • Single-leaf openings for boat traffic from Aug. 9 to Sept. 3. This means only one side of the bridge will open for boat traffic.
  • Double-leaf openings require 24-hour notice to the bridge operator: (206) 720-3048, or VHF-FM Channel 13.

Signage around the bridge will indicate which leaf will open. These signs may change without prior notice. These requirements may need to be implemented during weekends from Sept. 10 to Oct. 31 in order to complete the work.  

Clearance information 

Based on the average water level of Lake Washington, the following clearances are expected for boaters passing through the Montlake Cut:  

  • With both sides down: 30 feet of vertical navigation clearance, and 46 feet of vertical clearance throughout the center 60 feet of the bridge.  
  • Single-leaf (one side raised): horizontal navigation clearance of 64.5 feet.  
  • Double-leaf (both sides raised): horizontal navigation clearance of 129 feet.  

Safety in the Montlake Cut

With bridge openings reduced to a single leaf, boaters may notice queuing and waits on either side of the bridge. We urge all boaters to travel at a reduced speed, avoid passing others going the same direction and keep a safe distance from other boats.  

Contact information

Bridge operator: (206) 720-3048 or VHF-FM Channel 13. 
 
Communications: Joseph Calabro

 

A look at the various clearance heights of the Montlake Bridge for marine traffic. A "single-leaf" opening, when just one side of the bridge is raised, is depicted.
A look at the various clearance heights of the Montlake Bridge for marine traffic. A "single-leaf" opening, when just one side of the bridge is raised, is depicted.