Brunswick Terminal Station Upgrade

Covers for cable conduits and culverts (trenches).


Conventional mild steel or aluminium (checker-plate) trench covers conduct electricity, are not always appropriately load rated and are heavy and difficult to access.


Access covers that do not conduct electricity, are appropriately load rated, light weight and easy to access.


  • Terra Firma Trench Covers
  • Electrically non-conductive.
  • Have high structural performance – independently tested to AS3996:2006, Class B & C.
  • Are light weight with an ergonomic lifting mechanism allowing single-person operation for installation and maintenance activities.