Re: Fish pass

In article <[EMAIL PROTECTED]>, Sandy
<URL:mailto:[EMAIL PROTECTED]> wrote:
> DomDomken wrote:
> > "Sandy" <[EMAIL PROTECTED]> wrote in message
> > news:<[EMAIL PROTECTED]>...
> >> DomDomken wrote:
> >
> > Yes, of course. The stream will be channeled beneath a VERY wide
                                                                    
How wide - more than a kilometer?

If the culvert is very long it will have to be large enough for personnel to
get in and clear any blockages.  If it's that big then fish will get through
from time to time.  There might be a problem  with migratory fish runs in
very low water but low water itself would be the greater problem.

> > landfill.  That's why fish transit is uncertain, and needs to be
> > favoured...

> How did they get permision to land fill a watercourse? Anything toxic in the
> landfill will leach into the stream and be carried throughout the system.

I doubt it's that sort of landfill.  The rules in Belgium are more or less
the same as those here. 

> Secondly they will have to have settlement lagoons below the site for any
> silt and debree to settle in before the stream enters the main watercourse
> if they don't the silt could desimate the vertibrates and suffocate the
> fish.

But this may have to be done for a while at construction time.

Cheerio,

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