Many thanks for that advice, could you also tell me if it's possible to split larger diameter willow longditudinally in half and still make it strike? I'm only asking as there is some larger dia material currently available for harvesting
Hi Ron, Unfortunately, flood events are unpredictable and I only have a narrow time window to work with live willow, I really need to carry out remedial work before the spring
I've just been down to measure the flow on the river after the levels have been elevated 2' by the snowmelt and the river's still only doing 1m/s, looking at it now 10m/s seems ridiculous. I can't afford to wait for another flood event, the river could potentially rise another 4' any ideas on...
Its due to a bit of clever design by the Environmental agency. A hydralic dam further upstream diverts water into a reservoir which then overflows back into the river directly on the outer radius of our river bend. At full flow the water is about 12" below the top of the bank so it rises about...
Unfortunately my hands are tied with the requirements of the Environmental agency, because apprently there are 'tiny creatures' that like to burrow into the bank and they are looking for a 'natural' way of solving the problem. Even a gabion solution is unacceptable to them.
With regards to the...
I've been using an equation from Izbash(1970) to help predict stable stone sizes for riprap which could undergo river flow rates of up to 10m/s, unfortunately, the resultant Dn sizes seem rediculously large. Is there a better more realistic formula for estimating the size at these high flow rates?
I've put forward a proposal to the Environmental Agency to retain my riverbank using 900mm high 75mm dia live willow spiles angled into the bank at 20 deg. Backfilled to the top with soil which will repose away from the edge upwards at an angle of 20 deg. below the soil is a foundation of...
