Waka Kotahi NZTA Waka Kotahi NZTA map showing road closures cutting off Nelson, at 11.20am on Sunday. ”Contractors are aiming to re-open SH1 by midday and we expect to re-open a route through to Nelson by the end of the day via SH6 and SH65. We are also assessing flood damage on SH7 north of Hanmer this morning which completes this critical link.” The damage was still being assessed, and it was too early to say when other roads would be reopened, she said. Anyone driving would need to take extra care as there was still surface flooding and debris on the roads.