Here is an autocad dwg file for 3d view of a bridge. a structure carrying a road, path, railway, etc. across a river, road, or other obstacle.
Layout detail dwg file
Bridge construction detail
Constructive section cavit
Plan and section stair det
Structure joinery pipe det
Acoustic insulation of fl
Stair plan and Section hou
Wall interior exterior sec
Roof plan detail with roof
Isometric concrete joists
Drawings details of bridge
Spiral Stair plan, elevati