This architectural drawing is Detail section of bridge design. In this drawing there were vertical section 0.40x10 is given. A pile is a vertical support structure that's used, in part, to hold up a bridge. It can be made of wood, concrete, or steel. A pile is hammered into the soil beneath the bridge until the end of it reaches the hard sub layer of compacted soil or rock below. For more details and information download the drawing file.
