Welsh Government M4 Corridor Around Newport Proof of Evidence – Engineering Design
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Welsh Government M4 Corridor around Newport Proof of Evidence – Engineering Design Adran yr Economi a’r Seilwaith Department for Economy and Infrastructure The M4 Motorway (Junction 23 (East of Magor) to West of Junction 29 (Castleton) and Connecting Roads) and The M48 Motorway (Junction 23 (East of Magor) Connecting Road) Scheme 201- The M4 Motorway (Junction 23 (East of Magor) to West of Junction 29 (Castleton) and Connecting Roads) and The M48 Motorway (Junction 23 (East of Magor) Connecting Road) (Amendment) Scheme 201- The London to Fishguard Trunk Road (East of Magor to Castleton) Order 201- The M4 Motorway (West of Magor to East of Castleton) and the A48(M) Motorway (West of Castleton to St Mellons)(Variation of Various Schemes) Scheme 201- The M4 Motorway (Junction 23 (East of Magor) to West of Junction 29 (Castleton) and Connecting Roads) and the M48 Motorway (Junction 23 (East of Magor) Connecting Road) and The London to Fishguard Trunk Road (east of Magor to Castleton) (Side Roads) Order 201- The Welsh Ministers (The M4 Motorway (Junction 23 (East of Magor) to West of Junction 29 (Castleton) and Connecting Roads) and the M48 Motorway (Junction 23 (East of Magor) Connecting Road) and the London to Fishguard Trunk Road (East of Magor to Castleton)) Compulsory Purchase Order 201- The M4 Motorway (Junction 23 (East Of Magor) to West of Junction 29 (Castleton) and Connecting Roads) and The M48 Motorway (Junction 23 (East Of Magor) Connecting Road) (Supplementary) Scheme 201- The Welsh Ministers (The M4 Motorway (Junction 23 (East Of Magor) to West of Junction 29 (Castleton) and Connecting Roads) and The M48 Motorway (Junction 23 (East Of Magor) Connecting Road) and The London to Fishguard Trunk Road (East of Magor to Castleton)) Supplementary Compulsory Purchase Order 201- Proof of Evidence Ben Sibert, BEng CEng FICE MIStructE MCIHT Welsh Government, Engineering Design Document Reference: WG 1.5.1 January 2017 Page 1 Welsh Government M4 Corridor around Newport Proof of Evidence – Engineering Design Contents 1. Author ............................................................................................... 9 2. Scope and Purpose of this Proof of evidence ............................. 11 3. Development of the Scheme ......................................................... 15 Overview ............................................................................................... 15 4. The Scheme .................................................................................... 17 Scheme Overview ................................................................................. 17 Applicable Design Parameters .............................................................. 18 Scheme Description .............................................................................. 20 Junctions and Links............................................................................... 22 J29A St Mellons .................................................................................... 22 J29 Castleton Interchange .................................................................... 23 Docks Way Junction and Link ............................................................... 23 Glan Llyn Junction and Link .................................................................. 25 Junction 23 M48 Roundabout and Junction 23A Magor ....................... 27 Rest Areas along the M4 Motorway ...................................................... 29 Highway Engineering and Alignment– Proposed New Motorway and Side Roads ........................................................................................... 32 Overview ............................................................................................... 32 Side Roads ........................................................................................... 35 Lighthouse Road ................................................................................... 36 New Dairy Farm Access Track .............................................................. 38 Nash Road/Meadows Road .................................................................. 38 North Row ............................................................................................. 40 St Brides Road ...................................................................................... 40 January 2017 Page 2 Welsh Government M4 Corridor around Newport Proof of Evidence – Engineering Design The Elms (Rockfield Lane) .................................................................... 42 Bencroft Lane ........................................................................................ 42 Alignment across the Gwent Levels SSSIs ........................................... 43 Alignment in Vicinity of Industrial Automation and Control Systems (Ch. 12+650) ................................................................................................. 44 Alignment in the Vicinity of Newport Docks and the River Usk (Ch. 8+600 to 11+400) .................................................................................. 47 Highway Engineering – Reclassification of the Existing M4 around Newport and the A48(M) ....................................................................... 50 Lighting ................................................................................................. 52 Public Rights of Way ............................................................................. 52 Provision for Non Motorised Users ....................................................... 52 Non Motorised Users and the Reclassification of the Existing M4 ........ 53 Earthworks and Geotechnics ................................................................ 54 Structures .............................................................................................. 57 River Usk Crossing ............................................................................... 60 Bridges over Railways ........................................................................... 61 Highway Drainage ................................................................................. 64 Land Drainage ...................................................................................... 73 Statutory Undertakers’ Plant ................................................................. 74 Private Means of Access ....................................................................... 75 Overview ............................................................................................... 75 Ty’n y Brwyn Farm Access .................................................................... 75 W&M McDonald Access ........................................................................ 76 Alan R Jones and Sons’ Access and Nash Road. ................................ 76 Tatton Farm PMA .................................................................................. 77 Mr Smith - Orchard Farm (OBJ238) ...................................................... 78 Mr Derek David - Fair Orchard Farm (OBJ0216) .................................. 78 January 2017 Page 3 Welsh Government M4 Corridor around Newport Proof of Evidence – Engineering Design Tata Glan Llyn Access Link ................................................................... 78 Carlsberg Supply Company UK Ltd (OBJ 0098) ................................... 79 Operations and Maintenance ................................................................ 79 Motorway Operations and Intelligent Transport Systems ...................... 80 Maintenance Facilities for Statutory Undertakers Assets ...................... 83 Maintenance Facilities for Highway and Land Drainage ....................... 84 River Usk Bridge Operations and Maintenance .................................... 85 Demolition of property ........................................................................... 87 Further Scheme Development .............................................................. 88 5. Land interests in the Compulsory Purchase Order ..................... 89 Overview ............................................................................................... 89 Network Rail (OBJ0025) ....................................................................... 90 Mr T G Hicks, Parc Golf Club (OBJ0049) .............................................. 90 Industrial Automation and Control Systems (IAC) Systems. (OBJ0068) 91 Tarmac Ltd & Cambrian Stone Ltd. (OBJ0097) .................................... 91 Bovis Homes (OBJ0103) ....................................................................... 92 Cargo Services (UK) Ltd (OBJ0137) ..................................................... 93 Mr John & Mr Peter Baker, Maerdy Farm (OBJ0145) ........................... 94 Sustrans Limited (OBJ0148) ................................................................. 94 Mr Nicholas & Ms Rebecca Clarke, Whitecross Farm (OBJ0207) ........ 95 Mr Clive Rabbitt, Daffodil Lodge and Ty Knoll (OBJ0209) .................... 96 Mrs T.C. Allen, Myrtle House (OBJ0211) .............................................. 96 Mrs D Alred and R P Richardson (Gwent) Ltd (OBJ0212) .................... 97 Mr JS and Mrs RE Anstey, Old Court Farm (OBJ0213) ........................ 98 Miss Susan Anstey, Court Farm (OBJ0214) ......................................... 99 Mr D Colley, Great House Farm (OBJ0215) ....................................... 101 Mr Derek David, Fair Orchard Farm (OBJ0216) ................................. 102 January 2017 Page 4 Welsh Government