Karaj residents had always been suffering from the dangers of floods and waterlogging, caused by cities special geographical location and inadequate infrastructures, and they do not have fond memories from rainfall. Implementation of the surface water collection network plan was an effective action to organize floods and prevent flooding in these urban and rural areas. Construction of collectors and run-off collection systems in districts such as Beheshti, Barghan, Hajiabad, Mohammadshahr, Madar Square, Akhtarabad, and Fardis are examples of projects completed by the company as part of mentioned plans.