Lake Ginninderra enjoyed a healthy inflow of stormwater and rain today. The Lake’s wetlands, John Knight Island and the former Police Jetty were particularly transformed. Some of the Lake’s most iconic vistas were underwater.
In the last three days, since 9am on Sunday 21 March there has been approximately 100mm of rainfall in the Lake Ginninderra catchment area. This is on the back of unseasonal high levels of rain in the ACT and NSW.
The Lake’s water is comprised of stormwater discharge from urban and rural areas from Gungahlin and eastern Belconnen. It has a catchment of 9,800 hectares.
The Lake’s eastern arm comprises the inflow of Ginninderra Creek, from Giralang down past the naval station at Lawson Foreshore to the southern tip of the peninsula.
The Lake provides an important stormwater retention facility, linking the Giralang, Gungahlin, Eastern Valley Way and Benjamin Way drains or waterways to the lower part of Ginninderra Creek.
In high water level events such as today, the Elevated water flow velocities in the vicinity of the Ginninderra Drive spillway represents a potential safety hazard. Fences and a floating boom have been installed to exclude the public from this area.