Tender: ES4–ES5 Design Development & Detailed Design for Depot Package B – Doncaster West, Doncaster Belmont, Tyne Yard

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The Depots and Stabling Project is seeking a supplier to deliver ES4 design development and ES5 detailed design for the selected option in Depot Package B covering Doncaster West, Doncaster Belmont and Tyne Yard. The contractor must validate feasibility of the option selected in the Option Selection Report using draft design for pricing, produce reports and drawings to meet the iCRD scope (including reinstating Siding No.6 to stable a 9-car AZUMA with ancillaries and stand back; reinstating Points No.5041; clipping Points No.5042; providing a 360-degree driver walkway and BS12464-compliant walkway lighting), provide a high‑level construction schedule and an assured ES4–ES5 cost plan (with PC supplier to incorporate ES6–ES8 construction cost plan), confirm any required OLE works and earthing/bonding, confirm existing depot operational methods remain valid through engagement with the depot operator and NR POIS, and act as Principal Designer including undertaking any additional surveys. Principal disciplines identified are Civil & Structural, Permanent Way and signalling; all designs, temporary works and disciplines must comply with Network Rail Standards and will receive engineering assurance from TRU Engineering.