Highways agency design manual

All of Wales is at alert level 2. Read the current guidance. We identify the administrative and technical requirements for the planning, preparation, design and construction of highway works.

We do this through the publication of standards and specifications to be used on the motorway and trunk road network in Wales. These associated guidance documents are divided into:. Guidance on our procedures which relate to the planning, preparation, design and construction of highway works on the Welsh motorway and trunk road network.

Skip to main content. About cookies. Standards for the preparation, design and construction of motorways and trunk roads. Part of:.

Highway standards. Contents Procedure and advice guidance Street works guidance. We manage the Highway Standards and associated guidance to be used in Wales.

To assist users of the DMRB in understanding how the documents have changed, the following training materials have been made available. We will continue to add to these resources as new training material is developed, so please check here regularly for updates.

DMRB awareness webinars discipline specific. Road layout - July Structures - June Pavements - February