TORONTO - An Ontario justice has refused to stop construction on one of Ontario's largest wind farms.

That means work on the 140 turbines near Goderich, Ontario can continue even though the K2 Wind project still faces a legal challenge.

The Drennan family had wanted work stopped pending the outcome of their appeal. They argue the 850-(m)-million project could pose a health risk.

The courts are expected to hear the family's request to have the approvals overturned next month.

However, the judge in London, Ontario says allowing construction to go on in the interim won't cause the family irreparable harm, even if they ultimately succeed in having the project stopped.