The bypass may be locked in but debate over the form it takes is far from over.
Wide Bay MP Llew O'Brien says support is growing for the four-lane format which the former police officer has been championing in the interest of community safety.
He said the people of Tiaro and the Wide Bay electorate were passionate about getting the bypass upgrade to four lanes to the point where his mobile was inundated with messages about the most critical piece of infrastructure the southern end of the region has seen in decades.
"If we are going to build a brand new green field piece of the national highway, it should be built to the standard we have built 50km south of Tiaro on the Gympie Bypass," he said