Welcome to the DMRB

The Design Manual for Roads and Bridges (DMRB) contains information about current design standards relating to the design, assessment and operation of motorway and all-purpose trunk roads in the United Kingdom.

Archived copies of standards can be found using this date filter

DMRB discipline filters

Sustainability & Environment

Environmental assessment and design requirements for the delivery of motorways and all-purpose trunk road projects. Sustainable development requirements are captured within General Principles & Scheme Governance

Road Layout

Life-cycle provisions related to highway geometry.

Pavement

Life-cycle provisions related to highway pavements.

Highway Structures & Bridges

Life-cycle provisions related to highway structures, including bridges and footbridges, bridge components, signals gantries, road restraint systems, and tunnels.

Drainage

Life-cycle provisions related to highway drainage systems.

Geotechnics

Life-cycle provisions related to highway geotechnical assets.

Control & Communications Technology

Life-cycle provisions related to roadside technology and communications, including CCTV, electricity connections, telecommunication services and traffic signalling systems.

Road Lighting

Life-cycle provisions related to highway lighting.