Once the $3.5 million project is complete, the playing surface will reduce in size by about three metres from the eastern side, while pockets will be realigned to create a truer oval shape and the interchange area will shift to closer to centre wing.

The oval will also have a camber at its centre allowing for better drainage.

UTAS Stadium manager Robert Groenewegen said the under-surface drainage had become less efficient as it aged, meaning the ground became waterlogged after heavy downpours.

"The water doesn't run away like it should anymore... you're meant to drain about six inches per second," he said.

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"It clearly doesn't do that anymore.

"The new design will allow it to be spot on and hopefully it'll last 20 years plus."

Heavy machinery will begin arriving on the site this week before the main excavation works begin, digging down 600 millimetres and removing the entire surface and surrounding drainage.

A 22,000 square metre turf farm has been developed at Dilston which will be rolled up and delivered to UTAS Stadium once the clay foundation base, drainage layers and sprinklers have been added.

The old turf will be used as top soil to bury waste at the Launceston tip on Remount Road.

The works are likely to be complete in November, a month before UTAS Stadium hosts Big Bash games. The new surface can be played on just a week after its installation.

North Launceston Football Club will play its remaining home games at Invermay Park, however it remains unclear where the grand final will be played if the club wins hosting rights.