Hi,
I’m modeling on RAS a bridge on a left tributary of the Arno river: the river Pesa (which has a very high water flow especially in the terminal sections due to high basin generosity and inability of outflows).
This bridge is made up of: above a bridge (thickness 1m) with an arched shape (very lowered),
inferiorly by a further arch (of variable thickness from 1.8 m at the ends to 1m in the middle) the bridge has neither batteries nor shoulders , the lower arc is inserted, at a given height, on the vertical end banks,
the bridge rests, on the middle, on the lower arch; there are therefore some areas (aldisotto of the deck, at the ends of the bridge) where it is possible that the water flows.
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Thanks!