Waterproofing and surfacing of concrete bridge decks (formerly BD 47/99, BA 47/99, and IAN 96/07). Version 2.5.0

DMRB: Highway Structures and Bridges CD 358 Version 2.5.0

Document Status

Current

Supplement

Civil & Structural Supplement

Series

DMRB: Highway Structures and Bridges

Abstract

Details the requirements for the design, materials and workmanship of waterproofing and surfacing concrete bridge decks. Covers: drainage and water management, detailing, waterproofing systems, installation, protection of waterproofing, carriageway surfacing, and design outputs.

History

Highway structures and bridges. Design. Supersedes CD 358 Waterproofing and surfacing of concrete bridge decks (formerly BD 47/99, BA 47/99, and IAN 96/07). Version 2.4.0 (NHW, 2022). Version 0 - dated July 2019 - replaces BD 47/99. Version 1 - dated March 2020 - updates references. Version 2 - dated June 2020 - correction to reference in clause 4.3. Version 2.3.0 - dated February 2022 changes made to core document. Version 2.4.0 - dated March 2022 changes made to core document. Version 2.5.0 - dated September 2025. Consequential update following the rewrite of the MCHW and revision to update references only.

Subjects

Publisher History

National Highways is an executive non-departmental public body, sponsored by the Department for Transport. It has responsibility for operating, maintaining and improving motorways and major A roads in England. Formerly known as Highways England, between 2015-2021 and Highways Agency, between 1994-2015.


Information

NBS

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.

Accuris

We connect trusted knowledge to customers' workflows – mitigating risk, increasing efficiency and accelerating innovation For more than 60 years, leading R&D and engineering-intensive organizations have relied on us to achieve on-time, on-budget delivery of complex projects and new products. We deliver an unparalleled combination of technical content and Artificial Intelligence (AI) technologies to surface answers from the vast universe of technical knowledge, both inside and outside the organization. In a single interface, we connect the dots between information scattered across many different sources, allowing technical professionals to make better, more informed decisions faster.