RailEnquiry

CHANDIGARH: Metro rail is set to face a big hurdle in underground utility services as besides having a network of storm water drainage system underneath, it also has sewerage, water, power, telecommunications and traffic signal lines. And keeping these services operational during the construction period will be an uphill task."A large number of sub-surface, surface and overhead utilities exist along the proposed Metro routes. These services are essential and have to be maintained in working order during construction," says Delhi Metro Rail Corporation (DMRC), in its detailed project report submitted to UT."Utility services have to be kept operational during the entire construction period and after completion of project," it adds.Sewer and water supply lines are mainly affected in underground cut and cover construction. These services will be maintained by temporarily replacing them with steel pipelines to support them during construction. These will be encased in reinforced concrete after completion of construction and retained as permanent. But where permanent diversions or utility pipelines and cables are not possible, temporary diversions without manholes will be made.Besides, water main lines and their service lines, including hydrants, water treatment plants and pumping stations will also come in the way of Metro.