The water level in the Murrumbidgee River at Wagga is expected to remain around five metres after Burrinjuck Dam reached capacity following the weekend's heavy rainfall.
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The wet weekend resulted in a rapid rise in the river level earlier this week and Water NSW, the operator of the state's rivers and dams, is releasing water from Burrinjuck to keep the dam at a manageable level.
The Murrumbidgee in Wagga rose about 3.5 metres over a 48-hour period between Sunday morning and Tuesday morning.
The height of the river was 2.37 metres at 2am on Sunday, and rose to 4.40 metres at 2am on Monday before peaking at 5.85 metres about 2am on Tuesday.
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The level continued to fall during Tuesday and the river was a steady 4.91 metres at 10.30am on Wednesday.
Heavy rain was recorded across the river catchment area at the weekend, including about 75mm over Burrinjuck Dam, which on Tuesday reached 99.7 per cent of its capacity - an increase of 7.6 per cent in the past week.
Water NSW said Burrinjuck was receiving inflows of 44 gigalitres per day and releasing 21 gigalitres per day on Tuesday.
Blowering Dam was at 95.1 per cent on Tuesday, with inflows of 4.8 gigalitres per day and releases of 2 gigalitres per day.
The level of both dams had decreased slightly by Wednesday morning to 99.5 per cent and 94.9 per cent, respectively.
A Water NSW spokesperson said the Burrinjuck catchment recorded an average of 40mm over the weekend and Blowering catchment's average was 71mm.
Notable rainfall totals included the 75mm at Burrinjuck and 82mm at Cabramurra.
The spokesperson said the current peak flows in the Murrumbidgee River at Gundagai and Wagga were the result of flows in the rivers and creeks downstream of the dams.
"Both dams were able to operate with minimum releases at that time because of the airspace in the dams from the pre-releases over the previous weeks," they said.
"The current releases will create airspace after the tributary peaks have passed.
"Water NSW aims to maintain flows within the channel capacity at Gundagai. This may result in river levels around 5m at Wagga."
Meanwhile, Wagga council said Lake Albert was "very close to being full", after the city recorded 22 millimetres of rain across the weekend, and it was was keeping an eye on its water levels.
"Council is monitoring the situation and is prepared should a rain event occur and local roads and Marshalls Creek are adversely affected," it said on its website.
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