The line was surveyed from Warwick to Maryvale by Mr. Blackman in May 1909. Estimated cost to build the line was £63,424.14.1. Approval to build the line from Warwick to Maryvale was given on 7th December 1909. Mr. William Pagan was the Chief Engineer appointed to oversee the building of this line. Work began on 28th February 1910, and employed up to 164 men, 31 horse and dray teams, and 14 plough and scoop teams.
Premier William Kidston, officially started the work by turning the first sod on Friday 18th March, 1910. During 1910 & 1911, the building of the railway line was delayed on several occasions. Heavy rain during the winter of 1910 delayed the building the earthworks. Then between February and March, 1911 heavy rain caused flooding and washed away some of the earthworks already done.
The line was officially opened by the Premier Mr. Denham on Saturday 30th September 1911. Two ladies held a royal blue ribbon 3” wide across the track while the locomotive passed through it.
SATURDAY, JANUARY 6, 1912 – (WA) – HEAVY STORM on MARYVALE
Mr. Assistant Traffic Manager Ross lost no time in having the line open for traffic.
MONDAY, FEBRUARY 2, 1914 - THE MARYVALE LINE - Stranded at
The southern part of the Darling Downs is particularly susceptible to storms and sudden downpours, whilst tornadoes and whirlwinds are not unknown. Damage to the permanent way and communications generally often occurs as a result of these storms.
Following three days torrential rain with intermittent hail the branch
track between Warwick and Maryvale was in a bad state early in February
1914, these being frequent slips and washouts.
Upon receipt of advice from the train crew at Gladfield, the District Superintendent at Warwick organized a ballast train and repair gang which was dispatched at daybreak from Warwick for the washout at Gladfield.
No attempt had been made by the train crew to continue to Maryvale during the night and the branch train commenced from Gladfield that Wednesday morning, evidently crossing the ballast train at Freestone, which was in those days a staff station with a station master in charge.
Despite a full days toil by the repair gang at the site of the washout, the evening mixed from Warwick has held up for 45 minutes on the outskirts of Gladfield, while the gang pigs tied the track.