Network Rail engineers have been working over the weekend to repair damage caused to the railway by a landslip on the Highland main line between Carrbridge and Slochd on Friday.
The engineering works are expected to be completed in time for the start of services on Wednesday.
More than 2,000t of rock will be installed to stabilise the affected line after a 20m section of the railway lineside gave way shortly after 8am on Friday due to heavy rain.
“Every effort is being made to restore full services as quickly as we can,” said Network Rail route managing director for Scotland David Simpson. “We are also working with train operators to limit disruption to journeys as much as possible while we carry out our repair works.”