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Costain-Skanska (CSJV) and their BREEAM Assessor Hodkinson Consultancy have recently submitted the BREEAM New Construction Infrastructure (Pilot) design assessment for HS2 Phase One, S1 and S2. This was supported by Arup, as part of a design house joint house venture with Typsa and Strabag. CSJV were responsible for all Early Works and Arup were responsible for all Main Civils Works.

CSJV and Hodkinson Consultancy worked closely with Arup and HS2 throughout the Design stage process resulting in us becoming the first of the four main works/enabling works contracts on HS2 Phase One to submit the BREEAM Infrastructure Interim Assessment to BRE, achieving an ‘Excellent’ score of 82.66%. This sufficiently exceeds the requirement set by HS2, who requested a rating of Very Good as a minimum with endeavours for Excellent.

Early Works achieved six innovation credits including; compliance with the criteria of the considerate constructors scheme to an exemplary level of practice, use of surplus excavated materials at its highest value, use of felled timber at its highest value. Three of the six innovations were commitments to achieve exemplary performance in waste diversion, responsible sourcing and use of a material efficiency metric.

We engaged with the Main Works Civils Contract and Design House (Arup), working collaboratively to identify the responsibilities for individual credits during the early Scheme Design phase of the project. The requirements for achieving ‘Excellent’ were incorporated into each of the original 145 work packages and Master Information Delivery Plans to aid the teams in their understanding of BREEAM. Presentations were also provided to environmental managers to ensure that the requirements and intent of BREEAM was fully understood and at the forefront of environmental good practice on site. TrackerPlus was used to monitor the assessment and prepare monthly reports to update HS2 on the progress of actions taken and any evidence. Hodkinson Consultancy, our BREEAM assessor represented CSJV on HS2’s BREEAM Collaboration Group and liaised with HS2, BRE and other stakeholders throughout the assessment.

We have since used our experience with managing the BREEAM New Construction: Infrastructure (Pilot) framework to feed into the consultation for the recently launched CEEQUAL Version 6 by BRE.