Tolo Highway Widening

CONTECH C-DRAIN® is a prefabricated drain have two components that act as replacements to the aggregate drainage layers. Water, which flows through the fabric and into the core, is removed several ways depending upon the drainage situation. One of the newest methods is through the use of prefabricated combination drain,which has a larger profile core at the bottom to serve as a high-flow conduit to move water to the designated drainage exits.


  • Low installed cost
  • Easy to handle and install
  • Reduces drainage system space requirements
  • Strong and durable
  • Simple inspection
  • Sustainable design
  • Chemically resistant
  • High flow capacity, reduced clogging
  • Predictable performance
  • Holds reinforced shotcrete