The topography of the site is very flat- from corner to corner it's 225' and drops a grand total of 2'... wow. So the model below is exaggerated a bit...
This could be at several scales- one where the length of the one below was 10', 20' even? longer, thinner ones? shorter ones? would be a great interactive bit for big and little kids alike.
The construction of such a feature would be thrilling to figure out- cor-ten steel, 1/8" margins, 10" thick solid steel center pivot- the result would be visceral, a real treat, i think...