NRA Interim advice note 09/13 Geometric design to improve surface drainage (including amendment No. 1, dated February 2014, and amendment No. 2, dated December 2014)
Publication Year
2014
Document Status
Withdrawn
Abstract
Gives geometric design requirements intended to ensure adequate surface drainage of carriageways, together with guidance on road surface geometric design in relation to the application of the requirements and measures that can be adopted when problems have been identified. It also includes an assessment procedure for calculating water film depths on pavement surfaces.
Document History
This document shall be read in conjunction with NRA TD 9 Road Link Design and the NRA addendum to HD 33 Surface and Subsurface Drainage Systems for Highways. Amendment No. 1, dated February 2014. Amendment No. 2, dated December 2014.
Publisher Information
National Roads Authority
The National Roads Authority's (NRA) primary function, under the Roads Act 1993, was to secure the provision of a safe and efficient network of National roads. They were responsible for the planning and supervision of construction and maintenance, publishing the NRA DMRB and NRA MCDRW. In 2016 the NRA merged with the Railway Procurement Agency (RPA) to form a new organisation, Transport Infrastructure Ireland (TII).
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