MONTREAL - The $3 billion price tag for the new Turcot interchange won't be spent only on concrete and asphalt: Quebec plans to spend an additional $112 million to expropriate properties.

The provincial transport ministry estimates that it will have to spend $112 million to owners and tenants of buildings on the path of the new interchange, according to documents obtained by Canadian Press.

Mobilisation Turcot, a group opposing the proposed Turcot remake plan, says that these expenses would be lower with a more modest structure.

The plan they have forwarded would entail no expropriations. "We know that alternatives have been presented which are viable and would require no expropriations," said Valerie Simard of the group.

"We agree that the interchange must be redone but since the start what we've been saying is that it must be done differently and better than it was done in the 1960s," she said.

Around three-quarters of the $112 million, ($84 million) will go to buy expropriated properties in the form of land, industrial buildings and commercial properties, according to a transport ministry spokesman.

The rest will go to residential property owners and CN Rail for a triage station.

About 100 tenants will be compensated but the minister would not say how much each would receive.

A spokesman for Transport Quebec also refused to indicate at which step the process is in right now.

"The project on track," said Real Gregoire. "There are a lot of negotiations going on right now all at once," he said.

He also mentioned that the sum of $112 could go up or down, depending on how those negotiations go.

"There could be some unexpected developments, all sorts of things could happen. We think that it will be about $112 million but sometimes these figures can change," he said in a phone interview.

The main residential building to be demolished is located at 780 Saint-Remi in the Southwest borough.

The former industrial structure, built in 1922 is worth about $3 million with its land, according to the city evaluation.

Over 100 people live in the building. The first tenants moved into big units with cement walls and totally transformed their homes.

For those tenants, "it's a big disappointment to see their homes demolished," said Valerie Simard.

"These are people who invested a lot into living there, most renovated the homes on their own," said Simard.

But the minister has declined to say whether those tenants will be compensated for their renovations, which will be destroyed in the demolition.

"We can't predict the end of this process," said Real Gregoir.

"If expropriation is unavoidable, there must certainly be a compensation for those homes that must be relocated," said Simard.