This project is consisting of construction south and middle parts of the Tehran Metro's line No. 6 which had been included numerous subprojects.

These subprojects are listed below:

• Construction total of 16km underground tunnel which 11 km of it is performing by Tunnel Boring Machine (TBM) with diameter size 9.16 m and the rest 5 km, is excavating with NATM method with diameter size about 10m.

• Construction total of 15 Metro Station which 5 stations of them are grade separated intersection's station that crossed from over of under the other Tehran's metro lines.

• Construction total of 15 ventilation shafts and its emergency exit way.

• Construction 2 H.V. power stations, one of them for the south part of metro's line6 and the other one for its middle part.

• Construction a rectifier between "A6" to "B6" of Line6's Metro stations.

• Construction the drainage system of South part of Tehran Metro Line6.

• Construction the three ways and its connection tunnel between Line4 and Line6 of Metro Line6.

• Construction the three ways and its connection tunnel and U-walls from equipment's tunnel to Line6 Tehran Metro's Terminal & Depot.

•  Complementary operation of 16 km tunnel of metro's Line6 such as infrastructures, surface finishing and railing.

Client: Tehran Urban & Suburban Railway Company

Consultant: Behro Tehran Consultant Engineering Company,Gueno Consulting engineers company

Start Date: 2010

End Date: 2013