Heavy rain and flooding could mean a longer trip home for some GO Train riders.
Metrolinx spokesperson Anne Marie Aikins tells Moore in the Morning if water levels continue to climb the transit agency will have to "shutdown" the Richmond Hill corridor.
Aikins says it doesn't mean it would be impossible to get home on the Richmond Hill line, but they would have to re-route trains."
"The trip is longer, we can't stop at Old Cummer or Oriole station. So it means some adjustments that we'd rather not do if we can avoid it, but we'd also rather not have trains underwater," Aikins says
Metrolinx is trying to avoid a repeat of what unfolded in July of 2013. More than a thousand people were trapped on a double-decker train for hours, needing to be rescued in inflatable dinghys. Impatient riders who left the train discovered the water alongside the tracks was waist-high on spots.
There censors along the tracks that record water levels and set off an alarm if they get too high.
Aikins says the flooding threshold is 79 m above sea level. At 6:30 a.m. the reading was 78.4 m above sea level.