A slip today (20 Oct) above Manapouri's Pearl Harbour has not only closed Waiau Street, restricting access to the town's wharf, but also threatened a house on neighbouring View Street.

A slip in Manapouri has put a house at risk, as well as threatened operations at the town's wharf. Photo: Supplied

Fiordland has been lashed by heavy rain over recent days, forcing the closure of the Milford Road (SH96), and now a street in Manapouri.

Southland District Council Chief executive Cameron McIntosh said the slip of the bank above Pearl Harbour happened around lunchtime, with the hillside coming down and going across the road.

The slip caused a house at the top of the hill on View Street to be sitting on the edge of the bank now, he said.

Building control officers from Council have been out to inspect the area and a dangerous building notice, which means no one can live in the house, is likely to go up tonight, he said.

The owner of the house has been notified and has been at the property this afternoon, McIntosh said.

Powernet has also been on site to fix the power poles damaged in the slip, and a geotech engineer was called in to inspect the area.

Manapouri's Wharf Street is the scene of a slip today (20 Oct). Photo: Fiordland Community Board/Facebook

McIntosh said that Waiau Street has been closed indefinitely while consideration is given to what mitigation can be carried out.

The walkway going up to the top carpark is closed as well, as it was damaged in the slip.

Staff from various companies have been on site to manage the situation as it pertains to them, and Council is working to ensure businesses can continue to operate, he said.