HS2 updates for the coming week

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Harvil Road & Skip Lane works – Night Time Only (7pm to 5am) Mon 10/06 to Mon 24/06 Extended Hours TBM Segment deliveries by Lorry into West Ruislip Portal – until 12/07

  Forward Planning – Breakspear Rd South – Road Closure under Railway Bridge for Culvert Trial Holes – Mon 29/07 to Sun 11/08

Harvil Road & Skip Lane works – Night Time Only (7pm to 5am) Mon 10/06 to Mon 24/06
HS2/SCS are undertaking some Night Time works on Harvil Road and Skip Lane between 7pm and 5am for 2 weeks from Mon 10/06 at 7pm until Mon 24/06 at 5am. There will be Traffic Management on Harvil Road consisting mostly of multiple Phases of 2-Way Traffic Lights and there will be Road Closures in place on Skip Lane. During each day the Traffic Management will be removed so there will be no impacts to users of Harvil Road or Skip Lane between 5am and 7pm each day of these 2 weeks.
 
Extended Hours TBM Segment deliveries by Lorry into West Ruislip Portal – until 12/07
 
Deliveries of TBM Segments by Railway have now resumed following the issue with the Rail Siding recently but due to ongoing issues with HS2/SCS securing any more than 5 slots per week to run Train deliveries, HS2/SCS will continue to transport TBM Segments by Lorry into West Ruislip to maintain TBM operations and build up a surplus of TBM Segments in the Segment Yard.
 
Recently LBH had allowed HS2/SCS to deliver TBM Segments on lorries into West Ruislip Portal over a 24/7 period, but this has now been scaled back to the initial Extended Hours so these TBM Segments on lorries can now be delivered Mon to Sat between 8am and 10pm. This agreement is in place until 12/07 and will be reviewed again at that time.
 
When reviewing the Lorry Data for May 2024 a total of 312 TBM Segment deliveries came into West Ruislip by lorry, with the majority (256) arriving during Core Working Hours.
 
Summary below:
  Network Rail have now reopened the SCS Rail Siding for the usual 1 Train per Night delivery into West Ruislip Portal The arrival time is as usual (after 11pm, off loading during the night and departing West Ruislip Portal around 7am) Both TBMs are tunnelling which means there is a need to keep deliveries both by Rail and Road ongoing at present LBH have agreed to keep TBM Segment deliveries also coming in by road on Extended Hours Mon to Sat between 8am and 10pm until 12/07 at present xtended Working Hours at Breakspear Rd South Site for Construction of Retained Embankments – June to Dec 2024   From 17/06 to 31/12 HS2/SCS will be constructing the 3 Retained Embankments which connect West Ruislip Portal to the Copthall Tunnel. To do this HS2/SCS have been consented extended working hours from 7am to 7pm Monday to Friday and 7am to 4pm on Saturdays.   During the construction of the Embankments (that are either side of the River Pinn & Breakspear Rd South HS2 Bridges as shown on the Map below) there is expected to be 10,000 lorry loads of material brought into the Sites from Harvil Rd Gate 2 and across the Internal Haul Roads. Lorries that are unloading on the west side of Breakspear Rd South will exit onto Breakspear Rd South on the HS2 Approved Lorry Route, and lorries unloading on the east side of Breakspear Rd South will continue on the Internal Haul Road to exit at West Ruislip on that HS2 Approved Lorry Route.   HS2/SCS will be building the Embankments to the required height using machinery for delivery and placement of material and the compaction of placed material will be carried out using vibratory rollers.   LBH will be keeping close tabs on the lorry movements and have also not committed to the full duration of the works when signing the consent. At present LBH will keep these works on a trial basis and review them on an ongoing basis Forward Planning – Breakspear Rd South – Road Closure under Railway Bridge for Culvert Trial Holes – Mon 29/07 to Sun 11/08
 
There has now been a change to the methodology of these works which require HS2/SCS to carry out further Trial Holes in order to finalise their design to replace the Culvert that crosses Breakspear Road South near to the Chiltern Line Bridge.
 
This means that there will still be the 2 Week Road Closure between 29/07 to 11/08 but this will be to excavate further Trial Holes (rather than replacing the Culvert). Once HS2/SCS are confident on their designs they will present them to LBH to agree a further Road Closure in order to install the replacement Culvert. This means that there will have to be not 1 but 2 Road Closures of Breakspear Road South in order to replace this Culvert which is not good news for residents nor those who use this busy road.
 
LBH will push for the final Road Closure to be carried out at a quieter time so it is likely that the final Road Closure will coincide with School Holidays (with the anticipated length of the final Road Closure also being 2 weeks).
 
At present the existing Culvert near the Chiltern Line Bridge does not have the required capacity to take away water run off from the road and as a consequence this area of road is susceptible to flood related issues. The installation of a new Culvert will be able to handle a larger volume of water and should therefore lead to less of a threat of flooding in this area.
 
Programme of works:
  Mon 29/07 to Sun 11/08 – Full Road Closure for excavating of Trial Holes (2 Weeks during School Summer Holidays) TBA – Full Road Closure for Culvert replacement works (2 weeks possibly later in 2024)