The updated flood maps show that recent flood mitigation works by council have significantly reduced how devastating a flood would be for Yenda and surrounding areas.

The update was put together by Torrent Consulting after council installed the mirrool creek flood warning system, constructed a flood gate at the east mirrool regulator site and implemented new emergency breaching protocols.

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Yenda residents have had to pay "ridiculous" insurance premiums since the devastating 2012 floods which caused $100 million of damage.

Council says this new mapping will provide residents with a document to use when discussing insurance premiums with their insurance provider.

Speaking to The Area News earlier this year, council's director of utilities Graham Gordon said council is "very confident" the new mapping will reduce insurance costs for the township.

During Tuesday's meeting, Griffith mayor John Dal Broi said he hoped the update would prove fruitful for those in Yenda.

"Let's hope this will return some results for the people of Yenda in terms of their insurance problems," Cr Dal Broi said.

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Now that the flood mapping has been adopted, it can be sent to the Insurance Council of Australia, who will assess the update and potentially make amendments to insurance costs for people in Yenda.

The updated flood mapping for Yenda can be viewed on the Griffith City Council website.

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