Having successfully manufactured and delivered channel drainage and combined kerb and drainage since the early 1980’s, Marshalls Civils & Drainage are experts in the manufacturing of drainage products and where they can be used in accordance with the Standards for Highways.
Our Lead Engineer, Chris Hind explains what the relevant standards are and how they can help to keep us all safe on our highways and roads. He says “the Standards for Highways are a set of documents on the design, construction and maintenance of highways with the UK.”
“There are seven sections in total, of which we use three at Marshalls, these include the DMRB, which is the Design Manual for Roads and Bridges, the MCHW, which is the Manual of Contract Documents for Highways Works and the IAN’s which is the Interim Advice Notes, however most of these are currently withdrawn and implemented in the updated version of the DMRB.”
“The DMRB (Design Manual for Roads and Bridges) was launched in 1992 and has been developed by the overseeing organisations in England, Wales, Scotland and Northern Ireland to help transport professionals meet the requirements of quality assurance procedures.”
“It contains information on the design, construction and maintenance of highways, which is used by local authorities, in conjunction with their own details and guidance as well as on motorways and major trunk roads on the National Highways network and includes the specification standards and installation of water management and drainage products.”
“Although there are nine sections within the DMRB, we mainly use the Drainage Volume and occasionally the Highway Structures & Bridges Volume, as this gives us the requirements on the hydraulic design, and when and where to design Combined Kerb and Drainage (CKD) and Drainage Channels, into a project. An example of this, is CD 524 states that CKD should be designed for accidental loading and impact and it also states CKD can offer cost savings in certain circumstances.”
“Our highway drainage products are manufactured to BS EN 1433 and are Kitemark certified, however this is a manufacturing standard, rather than a design standard, guidance on specification and installation can be found in the MCHW volume 1 series 500 and Volume 3 the HCD (Highways Construction Details) drawing B16. An example of the guidance can be found in Clause 516, which states E600 CKD should be considered when there are a large number of HGV’s are using a road or highway.”
“Our team of highway, structural and drainage engineers, along with our CAD technicians, all use these documents to ensure value engineered solutions using the correct products that are best for the needs of the project. When we design a project, we ensure all of our work includes the accessories, so there are no nasty surprises for customers once they have committed to a design. Our promise is to work closely with all involved to ensure the right drainage system is selected, detailed, delivered and installed”
For further information please visit our website www.marshalls.co.uk/commercial/civils-and-drainage or email the team at wmsales@marshalls.co.uk