A.D Construction was tasked with the critical responsibility of rehabilitating and widening the Gujjar Nullah, one of Karachi’s major natural drainage channels. The project was a significant part of the city’s flood management and urban infrastructure improvement efforts.

Project Summary

  • Project Name: Rehabilitation and Widening of Gujjar Nullah

  • Location: Karachi

  • Length: Approximately 1 Kilometer

  • Objective: Improve drainage capacity, prevent urban flooding, and strengthen the structure of the existing Nullah system.

Due to years of encroachment and sediment build-up, the Gujjar Nullah had lost much of its functionality, especially during monsoon seasons. The widening and reinforcement of this Nullah were essential to ensure safe and efficient water flow and to protect nearby residential areas from waterlogging and flood risks.

Work Details

  • Excavation of Site: Comprehensive clearing and excavation of the Nullah bed to prepare for widening and foundation work.

  • Soling / Nullah Bed Construction: Stone soling for foundational strengthening of the Nullah base.

  • Laying of PVC Pipelines: Installation of durable PVC for controlled water flow and efficient drainage.

  • Steelwork: Cutting, binding, and fixing of reinforced steel bars to enhance structural stability.

  • Shuttering and Plastering: Formwork for concrete structures followed by plastering to ensure smooth finishes and long-term durability.

  • Chuffer Dam Installation: Temporary water diversion structures to facilitate uninterrupted construction work.

Project Impact

This project significantly enhanced the Nullah’s water carrying capacity, reducing the risk of urban flooding in adjacent areas. It also improved overall environmental hygiene and served as a model for future drainage rehabilitation projects in Karachi.