PL/24/3905/HS2

Description

Request for the approval of non-material changes to the approved Plans and Specifications relating to development authorised by the High Speed Rail (London-West Midlands) Act 2017 under paragraphs 2 and 3 of Schedule 17 relating to the creation of the Colne Valley Western Slopes earthworks, realignment of Tilehouse Lane, the erection of the Chiltern Tunnel South Portal structures and building, the erection of supporting infrastructure including noise barriers, fencing and gates and the creation of balancing ponds. The non-material changes comprise:- Ribbed woodcrete (or similar) acoustic lining internal finish replaced with milled aluminum, perforated cassettes. Proposed cassettes are acoustically in accordance with the environmental minimum requirements at this location and meet all acoustic minimum requirements. Internal lining matches that of the Colne Valley Viaduct noise barriers. External finish is unchanged (vertically ribbed textured concrete), using the same texture specification (Reckli Mekong) as the viaduct substructure.- Post Setting-out / spacing increased from 2m-3m.- Minor adjustments to the noise barrier transition. Transition has increased from 28m to 30m in alignment with the adjusted post spacing from 2m-3m. Note, transition zone located only within Three Rivers District Council Area.- Embankment noise barrier bottom edge lowered, with a 300mm offset to the ground to enable inspection and maintenance access to the post base plates and fixings. See drawing 1MC05-ALJ-TP-DDE-CS01_CL02-219106.

Council Website

Address

Land Between Tilehouse Lane and A412 To The South Of Maple Cross Buckinghamshire

UPRN

010095968918

Coordinates

51.598711000000000, -0.507439200000000

Source: Application UPRN