Difta-shis road and tunnel Client: Government of Sharjah- Directorate of Public Works \ Consultant Engineer: Ch2m Status In Progress Difta-shis road and tunnel Geography Location Description The project involves construction of 11kms of divided highway in a mountainous area of Sharjah Emirate. It also includes construction of twin tunnels with an average length of 1250 m each and cross section of 110m2. The works include earthworks, rock excavation, filling and hard-rock tunneling.