Sight-seers are flocking to Blowering Dam today for a rare chance to glimpse the water storage coming over the spillway.
It’s bumper to bumper at times along the Blowering access road.
It’s the first time since December, 2010, that the dam has spilled.
Along with water coming over the spillway, Water NSW is also dumping water out of the dam at the rate of about 12,000 megalitres a day in a controlled release to create airspace ahead of future rain events, and to also allow Snowy Hydro to release water into the dam, via Talbingo and Jounama.
Water coming into the dam over the past 24-hours topped 20,000 megalitres.
Water NSW targeted a flow of about 15,500 megalitres at the Tumut gauge overnight, which saw the Tumut River rise to its minor flood level of 2m this morning.
Water NSW will work with the NSW SES to monitor local impacts as dam releases increase, with a target flow rate less than 20GL/day at Tumut by the weekend.
That would see the river rise somewhere between the minor and moderate flood level. The river rose to 2.2m during the minor flooding events of last Friday and Monday.
The SES says the anticipated flows over the weekend won’t impact on any houses.
The high releases are likely to continue for some time.
Water is now coming up at areas subject to inundation during minor flooding, such as Pioneer Park.
At 10.50am, Tumut River was at 2.08m.
The SES has advised of the following impacts of a high Tumut River.
1.50m: Water in the bottom end of caravan park
2.23: Water over road at Elm Drive / River Street
2.35m: Riverglade Caravan park significantly flooded
2.40m: Properties on the Tumut Plains become flood affected