Khayam Tunnel and Third Outlet Project
Client: Khakrizab Water Company
Objectives of Khayam Tunnel
Objectives of the Third Outlet Project:
Description of Services:
This contract includes a portion of the Tehran Surface Water Collection Project. The length of the tunnels is approximately 13 kilometers. The executed works under this contract include:
The groundwater level in sections 1, 2, and 3 is lower than the tunnel, but in most of the length of sections 4, 5, and 6, it is at the same level or higher than the tunnel.
The Third Outlet Project includes a 8.1-kilometer Nal Asbi tunnel with a diameter of 4600 millimeters, along with other related structures. The groundwater level in some parts of this section is also higher than the tunnel invert.