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Design of minor structures (formerly BD 94/17). Version 1.1.0

DMRB: Highway Structures and Bridges CD 354 Version 1.1.0

Design of minor structures (formerly BD 94/17). Version 1.1.0

Document Status



Civil & Structural Supplement


DMRB: Highway Structures and Bridges


Looks at design considerations for minor highway structures including lighting columns, cantilever masts for traffic signals and/or speed cameras, CCTV masts and fixed vertical road traffic signs. Aligned with BS EN 40, BS EN 12899 and replaces BD 94/17.


Highway Structures and Bridges. Design. Supersedes CD 354 Revision 1 Design of minor structures (formerly BD 94/17). (HE, 2020) and BD 94/17 Highway structures: Design (sub-structures and special structures) materials. Special structures. Design of minor structures (HE, 2017). Design manual for roads and bridges (DMRB). Version 0 - dated December2019 - replaces BD 29/17. Version 1 - dated March 2020 - updates references and corrects definition D in Equation 12.12 and clause 12.14. Version 1.1.0 - dated February 2022 - changes made to core document.


Publisher History

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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