Round locks Lock (water navigation)

agde round lock

there several examples locks have been built round plan, more 2 exits lock chamber, each serving different water level. lock serves both way of changing levels , junction. circular plan of lock allows boats within rotate line appropriate exit gate.

the best known example of such round lock agde round lock on canal du midi in france. serves lock on main line of canal , allows access hérault river.

a second french round lock can found in form of the, disused, Écluse des lorraines, connecting canal latéral à la loire river allier.