Bypass Channel

bypass channel

[′bī‚pas ‚chan·əl]
(civil engineering)
A channel built to carry excess water from a stream. Also known as flood relief channel; floodway.
A channel constructed to divert water from a main channel.

Bypass Channel

 

the open portion of a river channel, unobstructed by hydraulic engineering installations, designed to allow the passage of water during the construction of a hydroengineering complex (a complex consisting of power plants, reservoirs, canals, and the like). The channel is blocked during the final construction phase.

References in periodicals archive ?
Construction work is scheduled to begin this fall at which time the powerhouse will be shut down and water usually conveyed through the powerhouse will be passed through the bypass channel. During some of the construction project, flows in the bypass channel between Madison Dam and Powerhouse will be increased significantly, but flows downstream of the plant will be unaffected during the project
The flood defences, on the right bank of the river bypass channel, will be up to 3.2ft above the existing ground level.
A bypass channel was built to allow water to flow through while the channel is being restored, said Leslie Berns, the district's landscape ecology manager.
In a report, Andrew Farrow, the council's chief officer for planning and environment, said: "The previous scheme, designed and developed on behalf of the local authority by Ymgynghoriaeth Gwynedd Consultancy (YGC), consisted of a culverted bypass channel to the west of Mold and large underground attenuation tanks at Ysgol Glanrafon.
Also, in a Joseph Electronics exclusive, a bypass channel allows users to add more A/V data signals in either direction.
The material may pass through a mixing flight that includes an undercut for dispersive mixing and bypass channel for distributive mixing.
Employing CMOSens technology, with the sensor embedded in the wall of the unit's bypass channel, the controller achieves a settling time of < 300 msec with an accuracy of [+ or -] 0.8% of Rdg., [+ or -] 0.3% F.S.
The Trust will raise funds to buy the two dams slated for removal, and will equip a third one with a fish bypass channel. Among the fish species that will benefit is the endangered Atlantic salmon (Salmo salar).
The project included a new bypass channel at the southern end of the canal.
After a bypass channel was dug and shored, four, 8 by 20 foot trench boxes with 84-inch spreaders were set upstream in the river one at a time, and then filled with dirt to create a solid cofferdam.
The five violations identified by the corps stem from work the utility performed last year to protect a fish barrier and bypass channel at the western end of the canal.