TII Publications: Design DN-DNG-03022 Drainage systems for national roads (including amendment No. 1, dated June 2015)
Publication Year
2015
Document Status
Withdrawn
Abstract
Guidance on the selection of types of drainage systems for National Roads projects; considering their potential to control pollution and flooding, as well as drainage of earthworks associated with road schemes.
Document History
Superseded by the February 2024 edition. Stream: Drainage. Document Set: Standards. Publication Date: June 2015. Historical Reference: NRA HD 33. Supersedes NRA HD 33/15. DMRB 4.2.3. Geotechnics and drainage. Drainage. Drainage systems for national roads (including amendment No. 1).
Publisher Information
Transport Infrastructure Ireland
Transport Infrastructure Ireland (TII) has been created from the merging of the National Roads Authority (NRA) and the Railway Procurement Agency (RPA) under the Roads Act 2015. They are responsible for managing and improving the country’s national road and light rail networks. The contents of TII Publications is split into ‘Standards’ and ‘Technical’ documentation.
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