The highway you are thinking of RTT, is the Burnett Hwy. Runs from Rocky to just west of Ipswich. Pretty twisty in parts.
Whats wrong with the Bruce Hwy, someone asked. North of Gympie, its basically one lane each way, with some passing lanes. Succeptable to flooding, especially the further north you go. Around Gladstone to Rocky, they are rebuilding it, again, and its taking forever. They have now embarked on a road widening scheme. They chew the edges back about 6-10 metres, and put in a 1 metre strip in the centre between the two lanes. But when they get to a bridge, it doesnt get widened, so its back to the 2 narrow lanes. And its not unusual for patching to occur within weeks, sometimes even days, along the join between old and new bitumen. Not enough rest areas, or even pull over areas. Oh yes, there have been a couple of star projects, the Yeppen Flood Plain bridge, just south of Rocky, the removal of The Big Dipper north of Gin Gin. But for the traffic numbers, and types, its a bloody dangerous road, especially given its supposed to be part of the national A1 highway.
Take for example, Bobs Creek, between Archer and Midgee, (Rocky to Mt Larcom) About 6 months ago, a B Double crashed off the side of the bridge, falling into the dry creek bed, killing the driver. The accident took out the armco on the approach to the bridge, and about half the bridge railing itself. For about a month, traffic controllers had one lane closed, and were stop/going traffic via one lane. Since then, its been one lane each was, bollards everywhere, and a 40kph restriction. No effort has gone into repairs. Unknown how long that situation will last.
Its amazing to see, the quality of the job done to the roads in the SE corner. I have personally witnessed the median strip on the M1 somewhere between Caloundra and Bribie Island turnoffs being turfed. Up here in CQ, we are lucky to get hydroturf. Further north, they contend with mud.