LATEST: Water releases from Wivenhoe Dam are continuing following last week's weather event.
"Based on the inflow volumes from the rainfall event, releases will likely occur until tomorrow," Seqwater CEO Peter Dennis said.
"A very small fraction of the flood storage compartment is being used to store floodwater inflows. The vast majority of Wivenhoe's flood storage compartment and the full flood storage compartment of Somerset Dam remain available.
"Releases from Somerset Dam into Wivenhoe Dam also continue to balance the two storages as inflows stabilise."
Releases have been reduced to allow the opening of Burton's and Kholo Bridges.
Twin Bridges, Savages Crossing and Colleges Crossing remain closed but are expected to re-open tomorrow.
"With Colleges Crossing closed, traffic management is in place at the one-way Mount Crosby Weir Bridge. Due to water flows, a 9 tonne weight limit has been imposed for the weir bridge," he said.
"Motorists are asked to follow the instructions of traffic controllers and comply with the 9 tonne weight limit and 20kph speed limit on the bridge. The weight restriction meant some vehicles, including school buses, were unable to cross the bridge this morning. We apologise for the inconvenience and appreciate your patience over the coming days.
Mr Dennis said releases from North Pine Dam stopped yesterday, with the dam level now back just under full supply level at 98.6 per cent.
"With gate releases ceasing, Moreton Bay Regional Council has been able to re-open Youngs Crossing."
6AM: Water releases from Wivenhoe Dam will occur well into this week as a result of the torrential rain that fell in the region on Thursday and Friday.
Seqwater, operators of Wivenhoe Dam, advises that releases will be maintained to drain the storage level back to full supply level, which is 100% of the drinking water storage capacity.
Over 120mm of rain fell at Amberley in 48 hours and more in other parts of the region.
Twin Bridges, Savages Crossing, Colleges Crossing, Burtons Bridge and Kholo Bridge were closed yesterday.
Locals and visitors to the area are reminded to follow all road signs.
Burtons Bridge and Kholo Bridge are expected to re-open today.
Mt Crosby Rd at Colleges Crossing, Twin Bridges and Savages Crossing are expected to re-open sometime on or after Thursday.
The Mount Crosby Weir Bridge and Fernvale Bridge are open
With Mt Crosby Rd at Colleges Crossing closed, traffic management is in place at the Mount Crosby Weir Bridge.
More info on dam releases at seqwater.com.au
UPDATE, 4PM: Seqwater has mobilised its flood operations centre, with gated releases from Wivenhoe Dam and North Pine Dam likely.
Seqwater CEO Peter Dennis said the flood storage compartments of both Wivenhoe and Somerset dams are empty and fully available.
"Releases from our gated dams at Wivenhoe, Somerset and North Pine may occur tonight or tomorrow morning. This will be dependent on future catchment rainfall," Mr Dennis said.
"The timing and magnitude of releases from the gated dams will be dependent on the rain that falls over the next six to 12 hours.
"Seqwater is currently releasing water from Somerset Dam into Wivenhoe Dam to manage inflows and balance the water storage levels across both dams. This is a normal operational occurrence."
Mr Dennis said Seqwater would continue to closely monitor all dam levels, rainfall and potential consequences of inflows into the dams across the region.
"Significant overflows are possible from Seqwater's un-gated dams, with 11 dams currently spilling," he said.
"Un-gated dams are designed to spill during periods of heavy rain to pass flood water and protect the safety of the dam.
"We urge people to take care downstream of spilling dams and exercise caution near waterways and floodplains."
11AM: Ten Seqwater dams are currently spilling, with more rainfall expected across the South East Queensland region today.
Based on average catchment forecasts, Seqwater is not currently planning to make releases from Wivenhoe Dam as a result of the weather event but will continue to closely monitor all dam levels, rainfall and potential consequences of inflows into the dams across the region. However, there is still a chance of higher than the average estimated rainfall occurring, which would result in releases.
The flood storage compartments of both Wivenhoe and Somerset dams are empty and fully available.
Seqwater CEO Peter Dennis said un-gated dams were designed to spill during periods of heavy rain to ensure the protection and safety of the dam.
Due to rainfall in the catchments, the following un-gated dams are currently spilling:
- Borumba Dam
- Cedar Pocket Dam
- Enoggera Dam
- Ewen Maddock Dam
- Gold Creek Dam
- Hinze Dam
- Lake Macdonald
- Leslie Harrison Dam
- Sideling Creek Dam
- Wappa Dam
"We ask people to take care downstream of spilling dams and exercise caution near waterways and floodplains. If it's flooded, forget it," Mr Dennis said.
"Based on the 'average estimate' forecast from the Bureau of Meteorology, gate operations at Wivenhoe Dam or North Pine Dam are not currently planned.
"As the situation is evolving, we are monitoring the weather and dam inflows closely and will let the community know if the situation changes. Further updates will be provided if the situation changes.
"Seqwater is releasing water from Somerset Dam into Wivenhoe Dam to manage inflows and balance the water storage levels across both dams. This is a normal operational occurrence."
South East Queensland residents can be alerted of gated releases, or dams which are spilling, through Seqwater's free dam release notification service.
To register for Seqwater's dam release notification service, visit seqwater.com.au/dam-release-information-service.
For more information about Seqwater and its services, visit seqwater.com.au.