The Lincoln Highway has been vandalised for the fifth time following a clean-up of the previous anti-Flight Training Adelaide (FTA) graffiti last Thursday costing taxpayers about $3700.
The latest graffiti appeared on Tuesday morning on the highway near the Sawyer Street intersection and reads 'no way FTA'.
A spokesperson for the Department of Planning, Transport and Infrastructure (DPTI), which is responsible for removing the graffiti, said it involved emulsion and chip seal over the paint.
"The last clean-up of the graffiti on the Lincoln Highway near North Shields cost approximately $3700 including GST," they said.
"Any acts of vandalism and graffiti on government property is a waste of taxpayers' money and is strongly condemned by the department."
The Lower Eyre Peninsula Council's chief executive officer Rod Pearson said the council was disappointed and confirmed DPTI was responsible for cleaning off any graffiti on state roads, including sports team grand final messages.
The argument against the FTA development includes the noise levels of circuiting planes over townships and a school, the lack of transparency from both the council and FTA in the development process and the possible health ramifications for residents.