 In 1917 a second branch line was constructed from Bellbird Junction by the Wickham & Bullock Island Coal Co to their new Cessnock Colliery (later Cessnock No.2).In the 1920s they extended this line to Kalingo Colliery (later Cessnock No.1).Several branch lines were built off the Kalingo extension to service collieries owned by other companies.