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IS 420:2023 Precast concrete manholes

Publication Year

2023

Document Status

Current

Abstract

Specifies requirements for circular and rectangular cross-section concrete manholes for installation in carriageways of roads (including pedestrian streets), hard shoulders and parking areas, as well as soakaways, landing slabs and corbel slabs.

Document History

Supersedes IS EN 420:2004.

Publisher Information

National Standards Authority of Ireland

National Standards Authority of Ireland (NSAI) is Ireland’s official standards body. They operate under the National Standards Authority of Ireland Act (1996) and are accountable to the Minister of Enterprise, Trade, Employment and Innovation.

1 Swift Square
Northwood
Santry
Dublin 9
NSAI
Ireland

Website: http://www.nsai.ie
Email: nsai@nsai.ie
Tel: 01 807 3800