Cairo Metro line 4 project is divided into two phases. Phase 1 runs from a terminal station named (Haddaek El Ashgar) station (Sta.1) located in 6th of October City and this phase will be connected to Line 1 and Line 2 at El Malek El Saleh Station (Sta.16) and El Giza Station (Sta.13). Our report is a study specifically for the construction of Workshop/Depot Buildings which will be located in 6th of October city, next to the Ring Road, between Sta.1 (Haddaek El Ashgar) and Sta.2 (Hadaek Al Ahram).