Another underground connection at the south portal
Future connections between the SR 99 tunnel and city streets are continuing to take shape at the south portal, even if they're only partially visible from the surface. Drivers passing overhead didn't know it, but Seattle Tunnel Partners recently demolished a temporary wall separating the future mainline section of the tunnel from the on-ramp that will one day allow travelers to access northbound SR 99 from the stadiums.
The first photo shows the view from inside the cut-and-cover section of the tunnel. The half-demolished wall on the left offers a glimpse of the future tunnel on-ramp. The second photo shows the same area from the south side of the wall.