The 70.5 metre-long blade – the biggest in Australia – made its way by truck from Portland to Murra Warra on Friday.

Road users between Portland and Murra Warra are asked to be cautious between December 4 and 8 as oversized components are transported to the farm. A blade and two components transported each day.

​Related: Murra Warra Wind Farm takes shape

The travel route for the blades will be through Heywood, Hamilton, Coleraine, Harrow, Nhill and Dimboola to Murra Warra.

The tower section transportation route will be from Portland through Heywood, Hamilton, Cavendish, Mooralla, Cherrypool, Mockinya and then diverting to the west of Horsham to Pimpino and Dimboola.

They will then travel along the Borung Highway and Dimboola-Minyip Road through to the site.

Work is well underway on the first stage of farm, which will comprise of 61 turbines. The second stage will consist of 55 turbines.

Construction started on the 429 megawatt farm in March. Once completed, the first stage of the farm will supply enough energy to power 220,000 homes.

Overhead power liens were strung by helicopter at the site in late November.

The wind farm is expected create up to 300 construction jobs during the build and about 10 operational jobs during the first phase. The farm’s first turbine will be risen in early December using a 750 tonne crane.

Companies such as Telstra, Coca-Cola Amatil, Australia and New Zealand Banking Group, the University of Melbourne and Monash University have already entered into long-term power purchase agreements.