Sandy Springs officials say they made considerable progress treating roads Wednesday morning. But several roads remain closed due to ice:

*Northridge Road between Roswell and Dunwoody Place.

*Johnson Ferry at Riverside.

*Dupree and Power Ferry.

*Northside Drive from I-285 to the city limits.

*Glenridge from Abernathy to Glenlake Parkway.

*Stewart from Lake Forrest to Roswell.

*Roswell and Dalyrmple.

*Riverview from Northside to Old Powers Ferry.

*Riverside Drive from Brandon Mill Road to Johnson Ferry Road.

*Brandon Mill from Dalyrmple to Abernathy.

*Johnson Ferry Road from Riverside Drive to Abernathy.

*Mt Vernon Highway from Riverside Drive to east city limits.

City officials also are responding to fallen trees at Dudley Lane and Powers Ferry and Riverside Drive at Johnson Ferry.