Published: 30 April 2020
Technical advice note
Road traffic engineers & consultants
This note is to advise that there is an issue with the use of hollow bar anchors and soil nails as an anchorage method and, as a result, this methodology must not be used unless its suitability for anchoring structural works as designed is demonstrable. The new requirement for hollow bar anchors and soil nails applies from the date of this notice for Waka Kotahi NZ Transport Agency, and may be used by any other road controlling authority.