The original constructing plan is connecting Melbourne and Geelong from Melbourne Spencer Street to Williamstown.
The junction to Williamstown was a deliverable of Mount Alexander and Murray River Railway Company’s project.
The partner company was insolvent in 1856.
Thus, an adjusted line was built so the train could temporarily terminate at Greenwich near Newport then customers transited to a steamer to travel to Melbourne or Sandridge Railway Pier.

In September 1853, Joseph La Trobe who was the Lieutenant-Governor of the colony marked the railway construction by turning on the first sod at Geelong station.
The construction process had not started until early 1854 but the project experienced a labor shortage due to the gold rushes hype at the current time.
The chairman announced in the second meeting of 1854 that the majority of required land from the terminus, Geelong station, to Cowies Creek station (now Corio station) had been purchased or arranged with minimal difficulties.
Also, in the report, the chairman wrote that the Victoria government was generous and engaging as two hulks were placed at Cowies Creek (now Corio Bay) to proceed the construction to Duck Ponds.
  
The government employed 100 prisoners from the prison ship moored off Limeburners Point as labour to build the railway line.
However, the company continuously experienced shortages in resources due to the high cost and long shipping time of locomotives imported from England.
In September 1855, the company reported to have received a shipment of two carriages, wagons and other stocks.
Also, two locomotives from London sent in July were still expecting daily.
However, first Australia made locomotive was also prepared for usage.
The Ariel locomotive built in Geelong in 1856 was in use until the 1890s.

Also in late 1855, four miles of the permanent line from Cowies Creek station to Geelong station was completed and the accommodation at the terminus were almost finished the building process.
On the southern side of the line, ten miles of earthwork was completed, which was from Geelong station and Duck Ponds, and ready for trial.
In the last quarter of 1856, the railway company operated trial passenger train running between Geelong and Duck Ponds (now Lara) stations.
Duck Ponds was also the transition station from the Geelong line to Williamstown where the line would continue via the junction.
Mount Alexander and Murray River Railway Company by that time has been acquired by the colony government and the contractors that were responsible for the Williamstown junction's project was still in the negotiating process due to the labour shortages.
Also, the partnered company announced that they would confine their construction to the six miles of the Melbourne and Williamstown portion and approximately 70 miles from Melbourne to Alexander which remained untouched.

Then the service extended to Little River in January 1857.
The 38.5-mile railway line to Newport completed on 8 June 1857  and started offering service since 25 June 1867.
The original constructing plan is connecting Melbourne and Geelong from Melbourne Spencer Street to Williamstown. The junction to Williamstown was a deliverable of Mount Alexander and Murray River Railway Company’s project. The partner company was insolvent in 1856. Thus, an adjusted line was built so the train could temporarily terminate at Greenwich near Newport then customers transited to a steamer to travel to Melbourne or Sandridge Railway Pier.
In September 1853, Joseph La Trobe who was the Lieutenant-Governor of the colony marked the railway construction by turning on the first sod at Geelong station. The construction process had not started until early 1854 but the project experienced a labor shortage due to the gold rushes hype at the current time. The chairman announced in the second meeting of 1854 that the majority of required land from the terminus, Geelong station, to Cowies Creek station (now Corio station) had been purchased or arranged with minimal difficulties. Also, in the report, the chairman wrote that the Victoria government was generous and engaging as two hulks were placed at Cowies Creek (now Corio Bay) to proceed the construction to Duck Ponds.   
The government employed 100 prisoners from the prison ship moored off Limeburners Point as labour to build the railway line. However, the company continuously experienced shortages in resources due to the high cost and long shipping time of locomotives imported from England. In September 1855, the company reported to have received a shipment of two carriages, wagons and other stocks. Also, two locomotives from London sent in July were still expecting daily. However, first Australia made locomotive was also prepared for usage. The Ariel locomotive built in Geelong in 1856 was in use until the 1890s. 
Also in late 1855, four miles of the permanent line from Cowies Creek station to Geelong station was completed and the accommodation at the terminus were almost finished the building process. On the southern side of the line, ten miles of earthwork was completed, which was from Geelong station and Duck Ponds, and ready for trial. In the last quarter of 1856, the railway company operated trial passenger train running between Geelong and Duck Ponds (now Lara) stations. Duck Ponds was also the transition station from the Geelong line to Williamstown where the line would continue via the junction. Mount Alexander and Murray River Railway Company by that time has been acquired by the colony government and the contractors that were responsible for the Williamstown junction's project was still in the negotiating process due to the labour shortages. Also, the partnered company announced that they would confine their construction to the six miles of the Melbourne and Williamstown portion and approximately 70 miles from Melbourne to Alexander which remained untouched.
Then the service extended to Little River in January 1857. The 38.5-mile railway line to Newport completed on 8 June 1857  and started offering service since 25 June 1867.
Geelong and Melbourne Railway Company