Tehran Metro Line 3 is 33 kilometers long and includes 26 stations. This line will begin from Qa'im town in northeast of Tehran and will continue to Islamshahr and will be constructed and operated in 5 phases. The design and implementation of Phase I, Station 3-3 (Azadegan, North and South Ticket Halls, Azadegan Station and Communication tunnel 586 meters long ,have been regulated to Tosse Manabe Ab & Energy Company