Design for new pavement foundations (formerly IAN 73/06 revision 1 (2009), HD 25/94). Revision 1 (Withdrawn)

DMRB: Pavement CD 225 Revision 1

Highways England, 2020
Design for new pavement foundations (formerly IAN 73/06 revision 1 (2009), HD 25/94). Revision 1 (Withdrawn) Download document

Document Status

Withdrawn, Document not available for download

Supplement

Civil & Structural Supplement

Series

DMRB: Pavement

Abstract

Details the requirements used in the design of pavement foundations, including subgrade assessment and procedures for performance.

History

Superseded by CD 225 Design of new pavement foundations (formerly IAN 73/06 revision 1 (2009), HD 25/94). Version 1.1.0. (NHW, 2025). Pavement. Design. Supersedes CD 225 Design for new pavement foundations (formerly IAN 73/06 revision 1 (2009), HD 25/94) (HE, 2020) and HD 25/94 Pavement design and maintenance. Pavement design and construction. Foundations (HA, 1994), HA 41/17 Geotechnics and drainage. Drainage. Permeameter for road drainage layers (HE, 2017), and IAN 73/06 Design guidance for road pavement foundations (draft HD 25) (Revision 1 (2009)) (HA, 2006). Revision 0 dated March 2020 - replaces IAN 73/06 Revision 1 (2009) and HD 25/94. Revision 1 dated April 2020 - clarification re-laid function tables.

Subjects

  • Roads
  • Civil engineering, infrastructure and public utilities
  • Transport facilities
  • Road pavement

Publisher History

Highways England (formerly Highways Agency) was transformed into National Highways in 2021. It was responsible for the operation, maintenance and improvement of England's motorways and major A roads. It was an executive non-departmental public body, sponsored by the Department for Transport.

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.