With final designs of the station now settled, V/Line spokesman Daniel Moloney said the number of trains to run would be unknown until modelling was completed by the Department of Transport.

"We haven't finalised the plans at this stage for how many will stop at the station, but we certainly know the Ararat trains will at the very least stopping there," he said.

"But we are still working it out with the Department of Transport to see how many of the Ballarat services will stop there, bearing in mind it is a single track."

Mr Moloney said infrastructure limitations would mean not all services travelling to and from Melbourne would be able to stop at the new station.

"It's a case of how many we will be able to get out there," he said.

"Ultimately we will work through how many additional Ballarat trains can start and finish in Wendouree and we want that to be as many as possible."

Meanwhile, construction of 145 car parking spaces between Doveton and Armstrong streets is expected to be completed by mid-September.

City of Ballarat city infrastructure director Jeff Haydon said wet weather had delayed work.

"Our contractors have completed all the drainage and the lighting is now installed," he said.

"We are looking at doing the asphalting next week depending on the weather."

When the car park is finished, work will begin on sealing shoulders and marking parking bays in Ararat St, Mr Haydon said.

Preliminary works on the Wendouree Train Station have begun. A completion date of mid 2009 has been set.