DMRB: Drainage CD 523 Revision 1 Determination of pipe roughness and assessment of sediment deposition to aid pipeline design (formerly HA 219/09). Revision 1
Publication Year
2020
Document Status
Withdrawn
Abstract
Provides design criteria for the assessment of highway drainage pipelines, focussing on roughness coefficient and velocity.
Document History
Superseded by CD 523 Determination of pipe roughness and assessment of sediment deposition to aid pipeline design (formerly HA 219/09). Version 1.1.0 (NHW, 2021). Drainage. Design. Design manual for roads and bridges. DMRB . Revision 0 dated Jun 2019 - replaces HA 219/09. Revision 1 dated Mar 2020 - updates references
Publisher Information
Highways England
Highways England is now known as National Highways and 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 and was formerly known as Highways Agency.
National Traffic Operations Centre
3 Ridgeway
Quinton Business Park
Birmingham
HE
UK
Website: www.highways.gov.uk
Email: info@highwaysengland.co.uk
Tel: 0300 123 5000
