Project List —  Bristle Substrate Elver Pass


Site pic

1) Dean Burn weir—impassable to elvers before the project.

Site plan

2) Initial design drawing produced showing the proposed vertical bristle board elver pass in situ.  Projected water levels are also shown over the Q95 to Q10 range of exceedance flows.

3) Pictures of the finished installation.  The splitter box mounted on the sidewall serves to distribute the irrigation flow, in this case provided by a RAM pump.  This type of pump does not require an external power supply, instead working from the siphon effect of the existing head at the site.  A collection vessel can be attached to the upstream discharge pipe, if required, to allow for population monitoring assessments.

channel elver pass 1channel elver pass 3channel elver pass 2