from The Century Dictionary.
- noun A cut made through the side of a canal, reservoir, etc., for carrying off surplus water.
from the GNU version of the Collaborative International Dictionary of English.
- noun An overfall, or weir, for the escape, or overflow, of superfluous water from a canal, reservoir, pond, or the like.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
weirthat allows the escape of excess water from a canalor reservoir
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a channel that carries excess water over or around a dam or other obstruction
Sorry, no etymologies found.
A dam 2,400 feet long and 80 feet in height, with tunnels, wasteweir, and accessory works would be required at Mountain View.
The situation is such that an ample wasteweir may be built at a low-side dam on the solid rock of Hook Mountain remote from the dam, and outlets may be had by tunneling the same ridge.