Date: 04/22/2012 Views: 12205
Date: 04/13/2012 Views: 13487
Date: 03/17/2008 Views: 3066
Date: 08/23/2023 Views: 181544
The area where the tie bar passes through a depression in the tunnel has to be prepared for closure. The tunnel depression with the areas of fiberglass and foam core removed in preparation for closure.