Birch brash bundles

[openspaceman]

Just now, sandspider said:

Do they reduce erosion much? I've got a bit of stream bank where the gabions are collapsing, wonder if some brushwood could help hold it all together without much expense.

I thought their main function was to prevent erosion and entrain silt to form a stable bank.

 

I attempted to make firmer fascines  by compressing them with the grapple loader. The EA (IIRC) guys rejected them because they couldn't drive stakes through them.

[Steven P]

The same idea then as Christmas trees in the sand dunes? The wood - sticks are there to let the silt build up inside and provide support as opposed to being the new river bank? (The Christmas trees capture the sand to reduce dune erosion)

[sandspider]

52 minutes ago, openspaceman said:

I thought their main function was to prevent erosion and entrain silt to form a stable bank.

 

That's my understanding too.

 

But given that the winter stream flow is enough to pull apart gabions I'm not sure that fascines would gather much silt or make much difference?