The Brisbane City gauge reached 3.85 metres during this morning's high tide.
The river has now well and truly breached the major flood level mark of 3.5m in the city but remains below the 4.46m reached in 2011 and the 5.45m reached in 1974.
This situation is not over yet, and water levels are expected to remain elevated for several days.
But at least it has finally stopped raining in the city.
The Brisbane City gauge fluctuated between 3.83m and 3.85m between 8:45am and 9:17am local time and as of 9:33am was marked as "steady".
Diana Eadie of the Bureau of Meteorology (BOM) this morning warned a second river peak was expected with the tidal peak this evening at around 8pm. At this stage this evening's peak is expected to reach 3.3m.
Another peak is expected during the following high tide around 9am tomorrow morning.
How does it compare?
Confusingly, Brisbane has both the Brisbane River at City gauge and the nearby Brisbane River at Port Office gauge, which reached 3.96m at 9:13am and as of 9:18am was marked as falling.
For the purposes of these flood height comparisons, we are using the Brisbane City gauge.
The 2011 floods followed a horrendously wet 2010. By the time Brisbane's turn came, many regions had already experienced devastating flooding.
Intense rainfall between January 9 and 12 then triggered extreme flash flooding through Toowoomba and the Lockyer Valley before the river peak eventually reached Brisbane city and recorded the highest levels seen since 1974.
The infamous floods of 1974 occurred as the result of ex-Tropical Cyclone Wanda coming down and drenching the city.
Even these are not the highest floods on the historical record. Back in 1893, the river flooded twice in two weeks, reaching heights of 8.35m and 8.09m. Further back again in 1841, the river reached a staggering 8.43m.
Ipswich, Gympie and Maryborough
In Ipswich the waters reached 16.72m at 8:45am today. Likewise, the water level has been fluctuating.
The current flood at Ipswich remains well below the19.4m reached in 2011, the 20.7m in 1974 and the 23.6m back in 1893.
Meanwhile, the Mary River continued to fall at Gympie overnight but remains above the major flood level, after having peaked higher than any flood in living memory.
Maryborough is expecting a flood peak today, with levels expected to be similar to those reached during Cyclone Oswald in 2013.
Rain and floods moving south
Attention is now turning to northern New South Wales as the rain moves south.
Water has already topped the levee at Lismore and major flood warnings are out for the Tweed, Wilsons and Clarence rivers.
The Logan and Albert rivers are now also in flood and major flooding has occurred around the Beaudesert area.
The BOM has warned flood levels along in the Logan River could reach similar levels to those which occurred during Cyclone Debbie back in 2017.
Flooding along the Albert is expected to reach similar levels to those during Cyclone Oswald back in 2013.
Please keep up to date with your local warnings with ABC Emergency.
