Storm drains and heavy rain runoff is something that we don’t need to worry about on our layouts. The real world is not so fortunate. So having drainage modeled into our layouts is something we need to consider.
I created a quick and simple method of modeling storm drains on my layout, The Trenton Subdivision in N Scale, using some old scraps.
Important Note -All my measurements are in millimetres (mm). I find this is more accurate than trying to measure 37/64 of an inch. Also being Canadian we us metric. On that note, that is the Canadian spelling for millmetres