I've just been advised by a Safety Inspector, on the basis of the existing
guidance applied to construction/building sites, that up to 1.2m in depth, a
trench is assessed for its risk; over that depth it will be subject to a
Prohibition Notice unless stepped or shored.
Centre for Manx Studies, 6 Kingswood Grove, Douglas, Isle of Man IM1 3LX
Laare-studeyrys Manninagh, 6 Keyll y Ree, Doolish, Mannin IM1 3LX