Network Rail – Kettering to Corby Capacity Works GRIP Stages 1 & 2

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The line between Kettering and Corby in the UK required infrastructure enhancement by December 2014 to enable additional freight and passenger services and, potentially, to allow it act as diversionary route during the Midland Main Line electrification project. GHD’s challenge was to take the scheme through GRIP Stage 1 (output definition) and GRIP stage 2 (feasibility); undertaking an operational assessment, developing infrastructure options, evaluating their feasibility and cost, and aligning stakeholders through a value management process.

Working to a baseline requirement to operate two freight trains and one passenger train per hour in each direction, with the potential for one additional passenger train path and two additional freight train paths per hour in each direction, it was concluded that key to meeting these capacity requirements was the re-instatement of the double track section between Kettering and Corby (coverted to single track in the mid-1980s).

Other enchancements considered included linespeed increases, additional freight train tonnage capability, increased loading (RA10) onto the existing structures and larger rolling stock (W12), signalling changes between Kettering station and Manton junction and passive provision for electrification. Working within a tight six week programme GHD's responibilities included leading constructability and value management workshops with Carillion and Network Rail respectively. GHD then prepared technical specifications to support early contractor involvement in design development.