A $2.8 million dollar makeover of Murray Bridge Swimming Centre will begin next year after the state government agreed to fund a first stage of works.
New change rooms will be built at the centre between March and October, and a dedicated lane will be added to the Olympic pool for swimmers with a disability.
Repairs to the pool, and the pumps and pipes which fill it, will also extend its lifespan.
Those works - made possible by a $1 million grant from the state Office for Recreation, Sport and Racing - will enable a go-ahead on later stages of development, pending more funding from the Murray Bridge council or other sources.
A master plan for the swimming centre envisions a 25-metre indoor pool, separate hydrotherapy pool, gym, creche and meeting rooms which would allow it to be used year-round.
Considering the swimming centre had opened in December 1959, Mayor Brenton Lewis said it was due for a significant upgrade.
"Murray Bridge is the regional centre for the Murraylands and requires facilities that reflect that responsibility," he said.
State MP Adrian Pederick said he was excited that Recreation, Sport and Racing Minister Corey Wingard had agreed to fund the works, demonstrating the government's commitment to grassroots recreation and sport.
"For a growing community, this will be absolutely vital," he said.
"People are going to visit more and more for the racing - the dogs, the horses - the Bridgeport Hotel and industrial developments; and we'll have great facilities for the people who live here and in surrounding areas."
The pool is regularly used by recreational swimmers, school groups, the Vacswim program and the Murray Cods Swimming Club.
It will host more than 500 athletes at the 2020 South Australian Country Swimming Championships in January.
The council considered a call to move its swimming centre to Sturt Reserve as the master plan was being prepared, but councillors voted to leave it where it was and start the overhaul by building the centre's water playground.
However, a splash play area has also been envisioned on the riverfront as part of more works planned there.