CHARM - SC1 - Groundworks

Description

SC1 Groundworks: This is a subcontracts package to carry out groundworks for the CHARM virtually plastic free homes in Redditch, Worcestershire. The main tender information is in the Invitation to Tender document (supplied in PDF and Word versions below). Lot 1: The following works are to be included within the Groundworks package:- 1) Generally -All setting out is to be undertaken by the Sub-contractor. -Temporary roads -Stone for the Main Contractors compound and the maintenance of the same in accordance with the attached drawing -Tolerances - oversite concrete slab should be constructed within the following tolerances:- Line +/- 5mm Level +/- 5mm -All abnormals met by the sub-contractor in the course of undertaking the sub-contract works shall be deemed to be included by the sub-contractor with the exception of breakingout rock met during excavations. A rate for this work to be submitted with the Tender. Any voids met during excavation works are to be collapsed and compacted. -To include pile setting out, proof testing of pile positions, removal of near surface obstructions. 2) Site Clearance -To include the removal of all trees not required within the final scheme. -Topsoil to be stripped and preserved on site. 3) Excavate to reduce levels -All excavation required in order to establish formation levels shall be included by the subcontractor. 4) Roads and Footpaths Construct all adoptable and non-adoptable roads and associated footpaths in accordance with Engineers drawings. 5) Drainage -Construct all adoptable and non-adoptable drainage in accordance with Engineers recommendations. This is to include all final connections to existing drainage and domestic drainage to each plot. The foul plot connections will include all works up to and including the drainage through the slab. The rainwater plot connections shall include all works up to the connection to rainwater downpipes. -Any storm water drainage required in order to ensure the collection and dissipation of water collected on private drives and individual drives shall be included by the subcontractor. -Any diversion of existing drainage in order to facilitate new drainage works shall be included by the sub-contractor. -Land drains required to assist site drainage shall be included by the sub-contractor. 6) Substructures - Construct substructures in accordance with engineers drawings, including all drainage, service entries and insulation. The sub-contractor is to be responsible for supplying and laying the plastic pipework used from the Water Company stop tap to the stop tap within the dwelling. -All brickwork and blockwork below and including DPC shall be undertaken by the subcontractor including the provision of air vents. 7) Private drives and public car parking areas Construct all private and individual plot drives as detailed on the site layout. 8) Landscaping - The sub-contractor is to allow for cleaning around and removing from site any discarded building materials immediately following the dismantle of scaffolding; the completion of plasterboarding; prior to handover. - Topsoil to be imported if necessary should there be any deficiency between that required and amounts collected during site strip. - All landscape areas are to be graded and prepared to receive planting or turf where applicable. -All plot paths are to be constructed by the sub-contractor. These shall be constructed either in-situ or of pre-cast concrete slabs - see specification. In-situ paths to be brushed finish with trowelled margin and rounded edges. - The sub-contractor to allow for concreting and erection of a rotary line to each property. 9) Screen /Retaining Walls -The sub-contractor is to allow for forming the foundations to all screen and retaining walls. Further earthworks required in the formation of the retaining walls shall be allowed for by the sub-contractor. 10) Services Allow for all excavation and associated works for services distribution. It is intended that a Common Services trench should be adopted thus minimising excavations. 11) Street Lighting Allow for all excavation, bedding and dusting materials in association with street lighting works. 12) Pruning / clipping Allow for pruning / clipping trees / shrubs as required. The sub-contractors estimate is to be analysed into the following elements:- 1) Preliminaries 2) Site Preparation 3) Roads 4) Footpaths 5) Road Drainage (all drainage beneath the road construction) 6) Mains Drainage (drainage not on plot or beneath the road) 7) Domestic Drainage (on plot drainage) 8) Services Installations (including Street Lighting) 9) Sub-structures 10) Private / Individual Drives, Parking Areas, Access Ways 11) Plot Paths and Paving 12) Screen Wall/ Retaining walls Foundations 13) Substation 14) Garden and Landscaped Areas 15) Bins and Cycle Store Bases Generally, all of the groundworks on the site are to be performed by a single sub-contractor. Therefore any works not specifically detailed within this document, but which are necessary to carry out and complete the groundworks shall be deemed to be included in the subcontract price. If you are unsure over any specific item of work, then please contact the Contractor.