Storm Water Drain Project of Karachi -Rehabilitation and Wideining of Gujjar Nallah and Orangi Nallah (as Independent Engineer)

During the monsoon of year 2020, heavy rain caused urban flooding and disruption of Civic Life in Karachi. The Government of Pakistan and Government of Sindh had jointly decided to improve the required Civic Amenities in Karachi under Karachi Transformation Plan (KTP). Restoration of Storm Water Drains of Karachi, being one of the components of KTP aimed to mitigate the effects of flooding through cleaning work of Nullahs, all other related and ancillary activities, being executed through NDMA. For restoration of Gujjar and Orangi Nullahs (Part of Storm Water Drain Project of Karachi), Engineering Design was prepared by the Consultants hired by NDMA. For the purpose of design vetting NDMA hired Exponent Engineers to carry out value engineering and vetting of design for its soundness and economical solution.The project consisted of Trunk Sewer running parallel to the Storm water drain in the form of buried pipes. The maximum diameter of the HDPE pipes used in design was 1100mm.