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Fabric wrapped aggregate subsoil drain construction

Published: | Category: Construction , Pavement & surfacing , Specifications | Audiences: Road traffic engineers & consultants, Roading contractors

This specification and guidance notes apply to the construction of subsoil drains which consist of geotextile lined trenches filled with drainage aggregate. Pipes may or may not be placed in this drainage aggregate. The major changes in the 2003 edition of the F/6 specification.

Publication details

  • Author:
  • Published: 2003
  • Reference: TNZ F/06
  • Conditions: Use is mandatory on state highways and recommended on other road controlling authority roads.
  • Also known as: F/6