COLUMBUS, Ohio (WTVN) --A winter storm overnight dropped one to three inches of fresh snow on central Ohio early Tuesday.

Below-freezing temperatures and roads not treated yet by plow and salt crews made for a slower-than-usual ride into work.

ODOT planned to have 91 crews on interstates, state and US routes in Central Ohio, which includes Delaware, Fayette, Franklin, Madison, Marion, Morrow, Pickaway and Union Counties.

City of Columbus Snow Warriors continue work on State Routes 33, 104, 315, bridges, overpasses and arterial streets this morning.   A total of 50 City of Columbus trucks have been on roadways since 11 p.m. Monday night.

With temperatures well below freezing, ODOT says its drivers will pay extra attention to ramps and bridges which freeze first.

Dozens of school districts delayed the start of classes. A few even decided to close. You can click here to see if your school is on the list.