|
gptkb:Moffat_Tunnel
|
requires regular inspections.
|
|
gptkb:Severn_Tunnel
|
Ongoing maintenance required
|
|
gptkb:Hoosac_Tunnel
|
regular inspections conducted
|
|
gptkb:Albula_Tunnel
|
regular upkeep
|
|
gptkb:Tunnel_de_Mont_Blanc
|
regular inspections
|
|
gptkb:Gotthard_Base_Tunnel
|
regular inspections
|
|
gptkb:Marmaray_Tunnel
|
regular inspections required
|
|
gptkb:Queensway_Tunnel
|
scheduled maintenance every year
|
|
gptkb:Seattle_Tunnel_Project
|
planned for future
|
|
gptkb:Eurotunnel_rail_tunnel
|
regular inspections
|
|
gptkb:Thames_Tunnel_Company
|
managed by local authorities
|
|
gptkb:Birkenhead_Tunnel
|
regular inspections conducted
|