In September 1960, the quadruplication project was suspended on the northern line. Work continued between Roma Street and Corinda as the signalling contract had been already let. The northern line stations of Nundah and Toombul were constructed within this time frame, and Eagle Junction shortly after. The quadruplicated Corinda to Roma Street line opened on 1 December 1963, providing greater flexibility in the provision of peak hour suburban services and allowing the passage of long distance goods and livestock trains which travelled through these suburban networks to the main western line.