ABSTRACT
The following summarizes the general subsurface soil layering along the Metro route. The city of Cairo occupies the area of the alluvial valley of the river Nile. Before construction of the High Dam in Assouan in 1971, the river was free to flood all the area between the rocky formations of the
1 INTRODUCTION
1.1 Metro in cairo
Cairo is the first African city to have an Underground metro line, Line 1, which construction dates back to the 80s. Line 2 followed shortly thereafter, and was completed in the early 2000s. Line 3 is now under construction, with a contract dated 2007.
