Of the thirteen stations designed and built in the 1950s and early 1960s as part of the original Queensland Railways electrification and quadruplication projects, Graceville, which remains substantially intact, best exemplifies the Modernist-influenced design concepts employed. It is the most intact of the four butterfly-roofed platform stations, with Chelmer having been altered somewhat, and Eagle Junction and Nundah altered substantially. Of the four flat-roofed platform stations Sherwood has been altered partially, Milton has been altered substantially, and Indooroopilly and Toowong have been rebuilt. Of the five over-head stations, Auchenflower and Taringa remain the more intact, Corinda and Wooloowin have been altered substantially, and Toombul has been rebuilt.