nez wrote:I'm no engineer, but if you're going to fix it properly , make it a bridge a meter above the water and eliminate the silting problem altogether. Presumably this is too expensive and not practical.
The floating platform is very effective. A fixed bridge would be more expensive and largely unnecessary. Silting is largely unavoidable but it is fairly easy to fix so overall the existing floating pontoons with occasion de-silting seems to be fine how it is.