Construction of Cairo Metro Line 2

A new 30 km underground railway line is being built in the heart of Cairo, one of the world's largest and fastest growing cities. Cairo Metro Line 2 w ill link the pyramids of Giza on the west bank of the Nile to central and n orthern Cairo on the opposite bank when completed in 2001. This paper brief ly describes the methodology used for construction of the 18 stations, tunn els and workshop which make up this US$2 billion project-including the firs t ever tunnel under the Nile. A number of innovative solutions were develop ed to solve the problem of water leakage during construction.