The water is back on in Roxburgh, but travellers will have to wait until at least Friday before SH8 through the town opens.
The town was still busy yesterday with contractors and machinery working on the roads trying to clear silt and rocks.
Teviot Valley community board chairman Raymond Gunn said the roads would be reassessed at noon tomorrow. Detours are still available between Millers Flat and Roxburgh.
Central Otago District Council chief executive Leanne Mash said the water supply was on in the entire township by mid-afternoon yesterday, but residents were advised to boil all tap water before consuming any, until told otherwise by the council.
The boil-water notice was still in place at Lake Roxburgh Village, north of Roxburgh.
It could take several days for the water to be safe because the sediments needed to be flushed.