Here is a brief rundown of things that have been tried over the past 30+ years of folks working on this creek.
1) a floating dredge back 25+years ago sucked the silt out for a short distance
2) bank side vegetation re-establishment - lots of grasses and trees planted.
3) bank exclusion fencing to keep livestock off te banks
4) stream narrowing in the upstream areas captured <> 6,000 tonnes of silt
5) beaver dam removal and vegetation establishment - this allows silt to be flushed downstream
6) silt removal in brook trout spawning areas
7) land purchase to change land use - all upstream spring areas are now jontly owned by TU, ACA & AFGA.
And to further add to the info, here are two links of my concerns,
http://outdoorsmenforum.ca/showthread.php?t=164216
http://outdoorsmenforum.ca/showthread.php?t=174987
If there are other techniques that you might use to help the situation, I'd be more than pleased in assisting you in finding funds & various Govt. permits required to that you can help with the work.
Regards,
Don