The Thorold Tunnel on highway 58 in Thorold, Ontario is an underwater tunnel which crosses the Welland Canal. The walls of the tunnel are being rehabilitated with stainless steel reinforcing bar.
The Thorold Tunnel on highway 58 in Thorold, Ontario is an underwater tunnel which crosses the Welland Canal. The walls of the tunnel are being rehabilitated with stainless steel reinforcing bar.
The Thorold Tunnel on highway 58 in Thorold, Ontario is an underwater tunnel which crosses the Welland Canal. The walls of the tunnel are being rehabilitated with stainless steel reinforcing bar.
The Thorold Tunnel on highway 58 in Thorold, Ontario is an underwater tunnel which crosses the Welland Canal. The walls of the tunnel are being rehabilitated with stainless steel reinforcing bar.
