Determination of pipe roughness and assessment of sediment deposition to aid pipeline design (formerly HA 219/09). Version 1.1.0

DMRB: Drainage CD 523

National Highways, 2021
Determination of pipe roughness and assessment of sediment deposition to aid pipeline design (formerly HA 219/09). Version 1.1.0 Download document

Document Status

Current

Supplement

Civil & Structural Supplement

Series

DMRB: Drainage

Abstract

Provides design criteria for the assessment of highway drainage pipelines, focussing on roughness coefficient and velocity.

History

Drainage. Design. Supersedes CD 523 Revision 1 Determination of pipe roughness and assessment of sediment deposition to aid pipeline design (formerly HA 219/09). Revision 1 (HE, 2020). Design manual for roads and bridges. DMRB. Version 0 dated Jun 2019 - replaces HA 219/09. Version 1 dated Mar 2020 - updates references. Version 1.1.0 dated November 2021 - changes made to core document and England NAA.

Subjects

  • Civil engineering, infrastructure and public utilities
  • Pipelines

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.

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