Causeway

Forerunner Causeways are found mainly on the levels Assault on the Control Room and Two Betrayals though there is another found on the multiplayer map Gephyrophobia available on Halo Combat Evolved for the pc. They are basically bridges, which unlike the energy bridges of the forerunners that are only found indoors, cross many of the bigger canyons on instalation 04. They are very intricate in design some having multiple floors with parts of the floors made out of glass though the glass in the floors directly looking at the ground below will be indestructable unlike the glass on the upper floors. These causeways are held together by a mixture of metal supports built into the canyon walls and energy beams which cris-cross the structure.