Trade Specifications
The following Trade Specifications must be read in conjunction with all other Contract documentation including; Tender Letter, Operating Procedures for All Contractors, Conditions of Contract for Works, Labour Only and Purchase Orders, General Construction Notes (England & Wales), Suppliers and Sub Contract Works - SLA and the Company's Occupational Safety, Health & Environmental Management System.
Our aim is to enable our sub-contractors and suppliers to access key Commercial information such as Terms & Conditions, Trade Specification, etc. online as soon as they are updated and revised. We hope that this will ensure that our supply chain is always fully informed as quickly as possible.
Whilst available online, this information is also available from the Commercial Departments at our Divisional offices and will form part of any contract we place (as set out in the Order).
Please be aware that bogus web sites seeking fees for the chance of working with major contractors exist.
Jon Hayward
Commercial Director (Group)
tagged "Roads and Sewers" beginning with "R"
Roads & Sewers Stage 2
Revision M - 01.01.2024
Section 2 Guidance Notes, subsection 2.3 has been deleted as it is repeated from section 2.2. The renumbered subsections 2.3 and 2.8 have been amended to add requirements for testing and Water Authority requirements.
Subsection 2.15 has been amended to add requirements for test certificates being provided for all imported material at the point of delivery confirming that all materials are supplied in accordance with specification. Additionally, where CBR tests are required on road formations, plate tests on capping and sub-base and plate tests on drainage trench backfill, these must be allowed in accordance with LA requirements and the results shall be provided to BDW for inspection prior to any stage payments. In the absence of LA guidance this shall be carried out at 20m intervals.
Section 3 Pre-Start Investigation. Subsections 3.5 and 3.6 have been added.
Section 5 Setting Out. Subsection 5.2 has been added to require the Contractor to confirm the required local scale factor for the site and the local stations to be used for setting out the site. The Contractor shall ensure all existing ground levels are in accordance with the survey provided, paying particular attention to highway tie in points and any boundary points of interest.
Section 10 Drainage. Subsection 10.10 has been inserted to ensure an appropriate quality of works check is carried out on all drainage, manholes and inspection chambers. Documented evidence of this shall be provided to BDW prior to laying of base course and shall include as a minimum that manholes are built to the specified details, CCTV of drainage runs has been reviewed and any defects or damaged items have been removed and rectified.
Section 13 CCTV and As Built Surveys. Subsection 13.1 has been amended to include gulley connections and lateral pipes if so required by the Adopting Authority. Subsection 13.3 has been added to require the Contractor to provide a comprehensive information pack and issue to BDW.
Section 14 Capping Layer. Subsection 14.2 has been updated to include allowance for any testing that may be required.
Section 15 Roads / Parking Areas / Shared Access. Subsection 15.6 through to 15.10 have been added requiring the Contractor to maintain records for the installation, testing of materials and completion surveys.
Section 16 Concrete Kerb Race. Subsection 16.2 has been updated to require the Contractor to provide fully co-ordinated as-built details to the BDW Site Manager prior to stage payment.
Section 18 New Road and Street Works Act. Subsection 18.3 has been updated to require the Contractor to include the protection of existing watercourses and outfalls from the ingress of deleterious substances within their quotation.
Roads & Sewers to Binder Course inc. stage 2
Revision R - 01.01.2024
Subsections 1.4, 1.5, 1.6, and 1.8 have been added to require the Contractor to provide detailed cost analysis of the impact of any potential adjustments to drawings and include within their quotation all works associated with setting out from co-ordinates provided by the Company, testing of materials provided by them and test certificates.
Subsection 1.9 has been added to request that the Contractor ensures phased inspections of the works are arranged with the adopting authority in accordance with the adopting authority requirements.
Section 6 Wearing Course. Subsection 6.4 has been added to request records for the binder and surface course shall be provided by the Contractor for each visit and must be provided prior to stage payment.