RALEIGH, N.C. -- N.C. Department of Transportation crews are working around the clock to clear major roadways in the Triad, which saw more than a foot of snow in some areas.

Related: Heavy Snow is Over, But a Wintry Mix Continues

More than 370 workers and 290 plow trucks went out on de-icing duty Sunday in the department's 7th and 9th highway divisions, which include Greensboro and Winston-Salem.

Crews are targeting primary routes first and then they will transition to secondary roads.

NCDOT says some interstates and primary routes in Alamance, Caswell, Guilford, Orange, and Rockingham counties are still covered with snow and ice, only some are partially cleared.

Four and two-lane primary routes in Davidson, Davie, Forsyth, Rowan, and Stokes counties are still mostly covered in ice and snow. Secondary roads across the division remain 90 percent untouched.

Crews in both divisions that cover the Triad are also working to cut and remove downed trees from roadways.

For real-time travel information, visit DriveNC.gov or follow NCDOT on Twitter.

Related Stories:

RECORD SNOW: Third Snowiest 'One Day' in Greensboro History

LIVE BLOG: Real-Time Winter Storm Updates

NC Highway Patrol Responds to Hundreds of Accidents

Follow WFMY News 2 on Facebook and Twitter

► Make it easy to keep up to date with more stories like this. Download the WFMY News 2 App: Apple Users, Android Users