CAD File to follow later, but hopefully this explains the concept clearly enough for now. Questions include rail material type (i.e. steel, aluminum?), individual section cut material (basswood, balsa, chipboard?), and hanging materials?
Also let’s look at how to effectively use Chad’s idea of adding images of some type (drawings, photographs, narratives?…), to the sides of the model (perhaps hanging), that match up with each person’s designated mile?
One more consideration is how to deal with the many tributaries that flow into the L.A. River? If people model the openings it will effect the way they hang on the rails… hmmm