The LNP will commit $45 million if elected to build two new dams in the Wide Bay-Burnett region to improve water security and create 5000 new jobs.
The $25m Cooranga Weir will be built on the Boyne River south of Munduberra, securing 900 existing jobs and creating a further 2000 jobs once operational, while the $20m Barlil Weir will be built at Barambah Creek and will create around 3000 jobs.
Ms Frecklington said the new weirs would be in addition to the LNP's commitment to fix Paradise Dam and restore it to its full previous supply level.
"It is a disgrace that Wide Bay has the highest unemployment rate in the nation under the Palaszczuk Labor government," Ms Frecklington said.
"The LNP will build new weirs for Wide Bay-Burnett because water means jobs."
LNP agriculture spokesman Tony Perrett said the new weirs would be fully-funded by an LNP government to get 'shovels in the ground as soon as possible'.
"If elected, we will deliver the Cooranga and Barlil weirs before the end of the first term," Mr Perrett said.
Both projects are a key part of Mrs Frecklington's plan to double the value of Queensland's agricultural output by 2035.
"The LNP has a bold plan to deliver new water infrastructure, which includes the drought-busting New Bradfield Scheme and several dam projects throughout the state," Mr Perrett said.
"The New Bradfield Scheme will be Australia's largest dam; drought proofing western Queensland and opening up a new area for irrigation bigger than Tasmania."
Natural Resources Minister Dr Anthony Lynham said the Palaszczuk government was the only government building water infrastructure in Queensland.
"We have committed $1.2 billion to water infrastructure across this state since 2017, supporting almost 2300 jobs in regional Queensland," Dr Lynham said.
"This includes; $176 million for Rookwood Weir, $410 million for the Haughton Pipeline Duplication Project, $30 million for Big Rocks Weir and $13.6 million to kick start the new Emu Swamp Dam.
"We have an expert panel making a 21st century investigation into a Bradfield Scheme.
"The only thing the LNP did while in government was to can a dam - the Connors River Dam - and prepare dams for sale."
Queensland Farmers' Federation CEO Dr Georgina Davis said new water infrastructure was needed in the regions to provide more opportunities for high value agriculture.
"Water is a key connector and enabler for agriculture. It is essential that we have a pipeline of smart, economically viable water infrastructure projects to drive economic and employment growth for the state and build resilience for farmers," Dr Davis said.
"QFF welcomes the Queensland LNP's announcement to restore Paradise Dam to its full previous supply level, ensuring the long-term viability and security for our agricultural community as well as the safety of the Bundaberg community."
Burnett Inland Economic Development Organisation CEO Kristy Frahm said the weirs would support the agriculture sector and broader economy of the region.
"Reliable water supply to underpin the sector is absolutely critical as producers and growers continue to face periods of water shortage," Ms Frahm said.
"Water for current and future economic development continues to be raised as one of the highest priorities in the region."
Barker Barambah Irrigator Advisory Committee chair Stuart Nicholson said there was huge potential for improved water security.
"Increased water reliability will enable users on the scheme to better plan and develop their operations, which can be challenging to achieve in the current environment," Mr Nicholson said.