Why did they choose the materials to build the Brooklyn bridge?

The materials chosen for the Brooklyn Bridge were primarily dictated by the need for strength, durability, and flexibility. The use of steel for cables provided the necessary tensile strength to support the bridge's weight and withstand environmental stresses, while granite and limestone were selected for their resilience and aesthetic appeal in the structure's towers. Additionally, the innovative use of wrought iron in the bridge's framework allowed for both stability and the capacity to accommodate the span's significant length. Overall, the materials were carefully selected to ensure the bridge's longevity and functionality.