News

Work to begin on $3.5m modifications to Lenthall Dam gates

FAILING flood gates at Lenthalls Dam will be upgraded by October but property owners who have suffered through repeated inundation remain dubious about Wide Bay Water's ability to get the job done.

On Monday, Wide Bay Water chief executive Peter Care confirmed much-needed "modifications" would be carried out by engineering consultants GHD and Melbourne-based company Geotech - the same two firms which oversaw the design and installation of the defunct crest gates in 2007.

While the gates were designed to open once water levels reached 150mm above the top gate level, they have systematically failed to do so, leading to preventable flooding and isolation for Burrum River properties.

Cattle grazier Donna Allan's family farm was worst affected.

On Monday, she said the modifications, which would include the construction of a reinforced concrete deflector wall upstream of the gates and the installation of hydraulic cylinders, were likely a "waste of money" as she believed the original design was flawed.

>> Read more local news here

The failure of the gates was subject to a hearing at the Queensland Floods Commission of Inquiry during which Mr Care gave evidence that while the conceptual design of the gates had been successfully installed as party of new dam projects "the design had never been used to raise an existing dam".

The inquiry heard Wide Bay Water had difficulty with all gates, in particular Gate 5, during seven flooding events in four years.

In its final report, the commission recommended the "Department of Environment and Resource Management should require Wide Bay Water, in advance of every wet season, to provide details of its expectation as to the operability of the crest gates if a flood occurs, until such time as all gates have been demonstrated to work as designed".

Asked during the inquiry if the gates would ever work as designed, Mr Care said "I'm not a dam designer ... I could not say that they'll ever work".

The project is expected to cost about $3.5 million and is due to start on April 28 and finish by October, weather permitting.

The 2m high gates were installed to increase the capacity of the dam and designed to rise as the dam level rose to capture water, but automatically lower to control the release of water during a storm.

Mr Care said the technology was an Australian first and based on an idea that was operating in South Africa.

"Unfortunately since their installation the gates have experienced operational issues for a variety of reasons and have failed to remain down during flood events," he said.

"We have confidence in the design as the modifications have been tested using a scale model at the Manly Hydraulics Laboratory."

The project involves building a temporary access track and cofferdam across the spillway approach to allow construction of reinforced concrete deflector walls upstream of the crest gates.

Small modifications to the existing steel crest gates and spillway and installing hydraulic cylinders, sheaves and ropes to existing spillway piers and crest gates to assist in holding the gates down when they are releasing water are also part of the works.

The recreation area will be closed to the public for the duration of the works.

"The project will have no impact on water supplies to residents and businesses," Mr Care said.

Topics:  gates maryborough project wide bay water work



Don’t go chasing waterfalls…find them on these drives!

BRISBANE isn’t all bright lights and city slickers.

Science Festival seriously awesome

Don't miss the World Science Festival Brisbane!

CALLING everyone who wants to see something totally cool.

Drink where the cool kids do this summer

There are a bunch of new bars open in Brisbane, make sure you're there!

CHECK out these new funky bars.

Discover Brisbane’s laneway gems

Brisbane's laneways will surprise you.

NOT all of Brisbane City is as it seems…

Top five things to experience this summer in Brisbane

Tangalooma is amazing if you're keen for a dive, kayak or swim.

THIS summer get out and explore your capital city.

Your boots are made for walking these tours

Brisbane Greeters tours are a great way to learn the local history of the city.

YOU don’t need a bike or bus for a seriously good tour of Brisbane.

Is Brisbane the new arts and culture capital?

Check out GOMA's latest exhibition - it's all about hair! GOMA 10 Ambassador Patience Hodgson visits Nervescape V 2016 by Icelandic artist Hrafnhildur Arnardóttir (aka Shoplifter), commissioned for ‘Sugar Spin: you, me, art and everything’ at the Gallery of Modern Art, Brisbane. 
Photograph: Natasha Harth, QAGOMA

THE rest of the world should be envious of this line-up!

Aus Post CEO hits back at Pauline Hanson

Ahmed Fahour.

Fahour hits out at his consistent critic Pauline Hanson

M'boro RSL keen to help drought-stricken farmers

Run out of water and losing crops - Col, Mark and Bill Ward, of Bilcormack Enterprises, rely on the rapidly dwindling supply of dam water, to irrigate their small crops.

There are plenty of scraps for feed.

Musical to come to life at Brolga Theatre

The wardrobe team surrounded by fabrics and accessories in the costume room at the Brolga Theatre.

Ken is no stranger to the Maryborough music scene

Local Partners

Musical to come to life at Brolga Theatre

THE 40-plus cast of My Fair Lady will have the backing of an impressive 20-piece orchestra for a March performance at the Brolga Theatre.

REVIEW: Under the Gun doco looks at right to bear arms

ARMED: A still from the 2016 documentary film Under the Gun by Stephanie Soechtig.

An in-depth look into America's gun culture.

Hodges proud to be part of first channel dedicated to NRL

Justin Hodges is gearing up for his new gig on Fox League.

Footy star hopes to provide a voice for players on new NRL channel

Selling Houses renovate for Salvos in 100th episode

Charlie Albone, Andrew Winter and Shaynna Blaze return for season 10 of Selling Houses Australia. Supplied by Foxtel.

Selling Houses launch 10th season in volatile property market

Furious Price wants to quit I'm a Celeb after clash with Keira

Steve Price has threatened to quit the jungle.

Will camp ration clash with Keira cause Steve to call it quits?

Novel with lots of heart

The romance in A Quiet Kind of Thunder was only one of the joys of the book.

Book proves to be a gem with layers

M'boro showcased, farmer faces biggest hurdles on TV

MARRIED AT FIRST SIGHT: Maryborough's Sean Hollands showed his partner Susan around town for the homestay episode.

The Heritage City got a special mention.

$140k damage: landlord says property trashed, contaminated

He had what he calls "the tenants from hell"

Submarine, buses and 3000 tyres removed in $100K clean up

The list of things removed from this property is beyond astonishing

Popular island resort sells to loaded international investor

OUR PICK: Chris Foey's colourful shot of one of Gladstone's great tourism hot spots, Heron Island.

International investor snaps up piece of Gladstone paradise.

Expert: Why renters, home buyers may struggle

Matusik Property Insights director Michael Matusik.

What's next for the city's housing market

Ready to SELL your property?

Post Your Ad Here!