KHAYAM MAIN DRAINAGE AND 3rd OUTLET PROJECT
This project consists of 6 shafts and inlets
Which -in floor condition-transfers water into
Tunnels . The total length of tunnels is about 8km.
This tunnel is checked by 27 manholes. Whole
parts are constructed by IRAN BON Co, This
tunnel drains 20 km2 of Tehran city and consist
of following quantities.
