SES ferrying supplies for those cut off

·3-min read

A flotilla of boats is involved in the emergency operation delivering crucial supplies to those cut off by floodwaters on the edge of the swollen Hawkesbury River and ferrying stranded residents from isolation to safety.

Emerging from one boat at Windsor in Sydney's northwest was Di Smith, whose rural property at East Kurrajong is completely cut off by floodwaters.

The 56-year-old has been ferried to Windsor for an urgent medical appointment.

It was an emotional reunion with her daughter Heather, who was "relieved" to see her mum.

Ms Smith paid tribute to the State Emergency Workers who got her to safety on Wednesday.

"I'm grateful to be on the other side ... they had to navigate because there were a lot of cables floating on the top, there were massive logs," she told AAP.

"There are thousands of people, we are just stranded... and if it wasn't for the SES being able to bring me over for a medical reason we'd be lost."

"On the other side where I live you can't get out, because the bridges are cut off and there's a massive landslide on the Bells Line of Road, and they're saying the whole mountainside is going to go and that will be months to fix."

"Our best bet is probably hopefully in another week maybe one of the bridges may open, once the waters have gone down," she said.

Authorities aren't expecting flood waters to recede in the area for a few days, but Ms Smith hopes to return to her property before that, to check on her husband, child and animals left behind.

While the rain has stopped falling and the skies are blue, the flood waters are still rising in places along the Hawkesbury River, with hundreds cut off.

Supplies are now being delivered by boat to some of the hardest hit areas of North Richmond and Wilberforce.

At Windsor, a conga line of volunteers, some having had little sleep, is loading goods onto barges at a makeshift boat ramp.

The boats are destined for the town of Wilberforce, which has been cut off.

SES Inspector Robert Cooper is co-ordinating operations at the launch site, just a few hundred metres from Windsor's CBD, where his crews have been working through the night.

He says the damage has been devastating.

"We're ferrying people across, we've had some medical emergencies this morning, we've had some urgent medical supplies go in this morning both animal and human," Insp Cooper said.

"It's just heartbreaking to see the looks on their faces when you've got to take them back, when they're checking on their belongings... It's quite confronting, because they're very upset - as you would expect."

Just a kilometre down the road, near the Windsor CBD, Georgina Horne says her backyard resembles "a giant swimming pool".

The Windsor grandmother told AAP she hadn't slept properly for days, worried about the rising flood waters.

"It's been very stressful, looking at the river, we were asking are we going to survive."

A teary Ms Horne said she's lost trampolines, two washing machines, outdoor settings and a BBQ.

The sandbags didn't stop the rain getting into their home and there's a long, hard clean up ahead for her family.

Further upstream the Hawkesbury River at Sackville has continued rising, with the river expected to peak at a similar level to the July 1990 flood.