OPEN_796_EAONE_LANDSCAPE_SPECIFICATION 10 Aug 2016 APPENDIX 9


D20 Excavating and filling


To be read with Preliminaries/General conditions GENERALLY/THE SITE


110 SITE INVESTIGATION • Report: If available to be provided by Engineer


150A EXISTING SERVICES, FEATURES AND STRUCTURES • Services: Engineer to provide further details. • Site features to be retained: Engineer to provide details. • Structures: Engineer to provide details of protection.


CLEARANCE/EXCAVATING


164 TREE ROOTS • Protected area: Do not cut roots within precautionary protection area. - Size of area: Circle around each tree of radius 12 times trunk diameter, measured 1.5 m above ground level.


• Excavation in protected area: - Method: By hand. - Backfill as soon as possible or temporarily line with polyethylene sheet to reduce evaporation.


• Outside protected area: Give notice of roots exceeding 25 mm and do not cut without approval.


• Cutting: - Make clean smooth cuts with no ragged edges. - Pare cut surfaces smooth with a sharp knife. - Treatment of cut roots: Not required.


• Backfill: As dug material, enriched with phosphate fertilizer.


168 SITE CLEARANCE • Timing: Before topsoil stripping, if any. • General: Clear site of rubbish, debris and vegetation. Do not compact topsoil. • Treatment: Apply a suitable non-residual herbicide to areas to receive planting.


170 REMOVING SMALL TREES, SHRUBS, HEDGES AND ROOTS • Identification: Clearly mark trees to be removed. • Small trees, shrubs and hedges: Cut down • Roots: Grub up and dispose of without undue disturbance of soil and adjacent areas • Safety: Comply with HSE/ Arboriculture and Forestry Advisory Group safety leaflets.


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