It was later extended to the Maryborough Sugar Factory (established 1894). A branch line connecting to Maryborough was also opened from Theebine, south of Tiaro, to Kilkivan in 1886, and was later extended to Murgon, Proston, Windera, Kingaroy, Tarong and Nanango (the latter by 1911). A branch line from Mungar, south of Maryborough, to Broweena opened in 1889, and this line eventually extended to Gayndah, Mundubbera and Monto (1929). Coal from the Burrum fields eventually required better port facilities and a branch line was built to Pialba in 1896, from Colton railway station (just north of Aldershot), between Maryborough and Burrum. This branch was extended to Urangan in 1913. Engine and carriage maintenance workshops were built and expanded in Maryborough from 1880. Henry Taylor (junior) won the contract for a machine shop in January 1880, and this was extended in 1881 and 1884. The workshops, which were located to the south-west of the station, became less important after the Maryborough system was linked to the rest of Queensland in 1891. They are no longer extant, having been demolished for a shopping centre in the late 1990s. After the line to Gympie was approved in 1877, drawings for buildings at the Maryborough station were prepared by the Engineering Branch of the Department of Railways. The site chosen for the Maryborough railway station was centrally located on a municipal park reserve. In 1878 construction at the site included a station master's residence, engineer's office (non-extant), store and blacksmith's workshop. A large programme of works in the years 1879 and 1880 saw the construction of a goods' shed, passenger station, closets and urinals, turntable, loading banks, station gates and fences and a semaphore signal. The timber station building was handsome, yet modest in scale. A foreman's cottage was constructed in 1881 and a locomotive shed was built in 1882. In 1884 a gatehouse was built at the Ferry Street entrance, and new offices for the traffic manager and engineers were built the same year. In 1885 and 1886 a coal depot and a forkline were built, and the turntable was taken up. A new locomotive shed was built in 1900. Drawings for the residence were approved by Chief Engineer Henry Charles Stanley on 16 April 1878. The builders were John Roddam and John Walker.