The north portal of the tunnel will be on SR 99 between Mercer and Harrison Streets.
If you are already on SR 99 and you want to get off before the tunnel, you can take the left-side exit to Harrison Street towards downtown Seattle. Aurora Avenue North will be raised over the Battery Street Tunnel and extended three blocks to connect to Denny Way.
Harrison Street will be connected across Aurora at the time of the tunnel opening, and drivers can turn right or left on Harrison after exiting. Thomas and John Streets will also eventually be reconnected across Aurora, but that will not be completed at the time of the tunnel opening.
The last SR 99 exit to Queen Anne before the tunnel is Roy Street.
If you aren’t already on SR 99 and want to enter the tunnel, the southbound on-ramp is on Sixth Avenue North between Mercer and Harrison Streets.