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DMRB: Drainage CD 522 Drainage of runoff from natural catchments (formerly HA 106/04)
Publication Year
2020
Document Status
Current
Abstract
Describes requirements and implementation of measures to deal with surface water runoff from natural catchments draining towards motorways and all-purpose trunk roads. Ultimately aims to limit the frequency and severity of flooding incidents caused by runoff from beyond the highway boundary.
Document History
Drainage. Design. Supersedes HA 106/04 Geotechnics and drainage. Drainage. Drainage of runoff from natural catchments (HA, 2004). Design manual for roads and bridges (DMRB).
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
