Ashlar Park - Model

Part of this semester's Design Assignment is a physical model depicting part of our Alney Island project. Shown below is the section of my boardwalk design I have chosen to model, along with an A2 1:500 CAD base I am creating as a laser cutting file. My intention is to create a contour model of my cut and fill ponds, which I will laser out of 3mm plywood and card.