Civil & Structural Supplement
DMRB Volume 4 Section 2
Details requirements for road chamber top and gully top installations on all-purpose trunk roads and motorways. Also covers the requirements for existing chamber tops in existing carriageways and the annexes include WRc skid test and a decision tree.
Version: 0.1.0. Supersedes CD 534. Version 0. Feb 2020. Supersedes HA 104/09, IAN 196/17 and IAN 197/17. Design manual for roads and bridges (DMRB) 4.2.5.
National Highways is a government company, with responsibility for operating, maintaining and improving motorways and major A roads in England. It works with the Department for Transport and was previously known as Highways England and Highways Agency.
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
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