Halfway stage achieved by both bores on HS2’s Chiltern Tunnel

01 Feb, 2023 By

Digital Edition: Halfway stage achieved by both bores on HS2’s Chiltern Tunnel

Both tunnel boring machines (TBMs) being used to drive the 16km long tunnels through the Chilterns for High Speed 2 (HS2) have just passed the halfway point on their journeys towards the north portals at South Heath in Buckinghamshire.
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