Permanent opening - shingle removed by a series of hydraulic nozzles

Year proposed

  1932

Status

  Not implemented

Location description

  Taumutu

Description of option

  The removal of shingle from the opening site, by a series of hydraulic nozzles, was proposed.

Opening, closing, and lake level control description

  Permanent opening.

Maximum discharge

Maintenance/Management description

  "Questionable whether it would function satisfactorily". Shingle drift is not regular and is intensified when there is a heavy southerly gale.

Cost description

 

Fish passage benefit rating

  Low

Potential running impacts or benefits