The LIRR strike could cost the state up to $61 million in lost economic activity each day, according to a state comptroller’s report.

“A LIRR strike will be felt far beyond the tracks, triggering the loss of millions of dollars per day in lost economic activity, disrupting thousands of riders and throwing the region’s transit service into chaos and gridlock,” Comptroller Tom DiNapoli warned in a statement a day before the strike began.

The projection is based on LIRR ridership information, as well as census and economic data, according to the comptroller’s office.