Rubber Dam    Wind Mill   Aggregate Sand Soil (ASS) in Road Pavement Trials  Low Cost Primary school Building  Multi Purpose Cyclone Shelter  Low Cost Pile  Low Cost Model House  Twin Pit Sanitary System  Non Motorized Transport

RUBBER DAM   Bangladesh has too little rainfall in winter. So, the requirement of water for winter irrigation must be met from the ground water source and by conserving a part of the monsoon water in suitable storages. LGED has introduced Rubber Dams, a cost effective technology for retention and conservation of surface water in the river channel, reservoirs and lakes for the first time in Bangladesh by constructing two Pilot Rubber Dams in the Bakkhali River and Idagaon Khal in the Cox's Bazar District for the purpose of supplying Irrigation water to 8000 ha of winter rice. Cultivation through Rubber Dams can be used for all purposes where water retention is involved, these are Ideally suitable conservation of water in channel storage of the rivers and khals as dams can be inflated to retain river flows and deflated fully to allow passage of flood flows without any obstruction. The Rubber Dams have been jointly designed and constructed by LGED with technical assistance from the experts of the institute of Water resources and Hydropower Research (IWHR) of China.