write a short notes on bamboo bridges and cement bridges
Bamboo Bridge – A bamboo bridge is made by tying four or five bamboo sticks together. Bamboo normally includes in grass family but it is strong and highly durable. As it gets matured it becomes stronger. The bridge made by bamboo is kind of temporary bridge. It is mostly found in rural areas. It is mostly used for walking purposes as it cannot withstand heavy loads.
Cement Bridge - Cement bridges are made up of cement, iron rods and stone chips. They are permanent and serve for a long time. Now a day’s almost all important bridges are made up of cement or concrete. The expense and time of making these bridges are high but they are durable. They can withstand huge pressure of even loaded trucks and buses.