Flood levee plan for Goomeri
GYMPIE Regional Council is expected to commission a flood investigation of the Nangur and Chippendall Creek systems near Goomeri at some point in the future, and explore the construction of a 400-500m long flood levee in the western township.
The Aurecon flood mitigation study has concluded that a levee at Goomeri would be well worth its expected cost of $750,000 to $1 million.
Located about 75km west of Gympie, Goomeri lies at the crossroads of the Wide Bay, Bunya and Burnett Hwys.
Nangur Creek flows from the south and is crossed by the Burnett Hwy about a kilometre from the centre of town. Before reaching the town, it turns west and connects with Barretts Creek.
Chippendall Creek flows parallel to the Wide Bay Hwy and its floodplain is on Goomeri's north side.
It joins with Nangur Creek 2km north of the town.
Chippendall Creek in flood impacts on homes and businesses on the north side of Goomeri.
And during major flooding of Nangur Creek, the water "overtops" the creek bank to the south of the town and flows through the bowls club, football field and swimming pool towards the CBD.
"East and west parts of town are isolated due to these fast-flowing floodwaters," the report says.
Protection from this "concerning" flood behaviour could be achieved via a levee on the southern side of Goomeri blocking "overtop" flows from Nangur Creek.
"Based on a review of the available flood and topographic information, a 400-500m long levee may be sufficient, running generally east-west and located between the creek and the football reserve."
Such a levee would offer flood relief and benefit for up to 20 commercial and industrial properties in Goomeri, and 10 homes.
"There would also be benefits to community infrastructure, including local roads and park, for which the flood risks are significantly reduced."
The levee will not make the town flood-free, but coupled with better flood warning in the Nangur Creek catchment, should minimise the risk.