CATDAM
- weir: a dam erected across a river to raise the
level of the water. A fence of stakes set in a river or along the shore as a trap for
fish. The word is now restricted to smaller works, the larger are called dams. (IHO
Dictionary, S-32, 5th Edition, 5967)
- dam: a barrier to check or confine anything in
motion; particularly one constructed to hold back water and raise its level to form a
reservoir, or to prevent flooding. (IHO Dictionary, S-32, 5th Edition, 1196)
- flood barrage: an opening dam across a channel
which, when required, is closed to control flood waters. (IHO Chart Specifications, S-4
326.7)