It was the second rescue in 24 hours attended by members of the Bega SES unit, but thankfully their expertise was not required this time.

It was the Bega Valley Volunteer Rescue Association (VRA) that was able to execute a successful rescue this time.

Around 9.45pm, the Bega squad was called to attend a home on Murrays Flat Rd, Tarraganda, north-east of Bega, where a mother and her two-year-old were trapped by the rising Brogo River.

They VRA had been asked to assist paramedics as the infant was reportedly in need of medical attention, but the ambulance was unable to cross the still, but deep, water.

"We worked alongside Bega Police and NSW Ambulance using the four-wheel drives," one of the responding Bega VRA members Bowen Finnerty said.

"We took the paramedics across who were able to stabilise the infant and then we all drove back out."

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Bega VRA squad captain Zac Willis said while early requests indicated a boat may be required, "luckily we were able to get the VRA and police 4WDs across".

Mr Willis said paramedics assessed the two-year-old before they all made their way back across the waters, with the mother and child then taken to hospital for further assessment.

NSW SES Deputy Local Area Commander Michael Cooksley said the majority of his team members were at Bemboka where considerable rain at Yankees Gap was seeing a second river peak and water through homes.

He said they headed for Angledale after getting the call, but as it turned out they weren't required.

However, earlier on Tuesday, SES volunteers from Bega, supported by colleagues from Queanbeyan-Palerang, put their training to great use when a man was found clinging to a tree in the Brogo River.

It's believed the man had been stuck in the fast-flowing waters since the previous night and was only discovered about 4am when a farmer heard his calls for help.

READ MORE: Man clung to tree in floodwaters overnight before rescue