The floods earlier this month prompted plenty of questions as to how high the flood actually was.

While the Shoalhaven River at Nowra topped the four metre mark, what does that actually mean?

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For many the area's reference point had long been the former Nowra Sailing Club building.

If the floodwaters reached the sailing club sign it "was up there", if it was at the gutters "it was getting big:" if there was just the peak of the roof of the building visible it was "massive".

But the sailing clubhouse was destroyed by fire in June 2017 and the structure later demolished. Along with that went a lot of history.

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Council has since, of course, established The Nowra Sails, a $660,000 project which includes a large decked area, with seating and tables and overhead sails.

The structure is part of council's continued plan to upgrade and beautify the river frontage, however there is no way of telling the flood level in relation to previous events.

There original plans included the idea to establish some sort of permanent structure that would indicate the former flood levels.

Shoalhaven Historical Society even suggested an outline of the former building be put in place so people could gauge the flood levels.

A council spokesperson said staff were working with a consultant at the moment to prepare interpretive signage for the area of both modern and indigenous local culture.

"Along with these signs the flood markers will be attached to a single main pole at the site," the spokesperson said.

"But there isn't a time frame as yet."