For my project, I decided to use the concept of a bottle opener. I took the design and split it in half, leaving me with a roller, a long rectangular shape to move the roller, and a arm that rest on a pivot point. The rectangular shape is moved by a series of small rotating wheels. When the rectangle moves, it spins a bigger wheel, attached to the center of that wheel is a arm that lifts a portion of the bridge up and down when moved. Attached at the end of the arm is a slider that allows the arm to slide along a rail attached to the side of the bridge. The rail allows for movement of the arm across the bridges side. This allows the arm to lift and lower the segment with ease. The bridge portion is then lifted and a portion of the road bed goes along with it allowing for the passing of large vehicles underneath. There are also two towers with cables attached to the potion of the bridge that does not move to give it support when the movable potion is removed.