The Delaware Department of Transportation announced the weekend closure of Exit 4A/Interstate 495 northbound to Route 7 northbound, Christiana, from 8 a.m. March 22 to 5 a.m. March 25.

DelDOT’s contractor JJID Inc. will concrete patchthe roadway. A lane will also be closed on Route 1/Route 7 northbound. At all times, one lane will remain open on Route 1/Route 7 northbound.

The detour route is Exit 4B/I-95 northbound to Route 1 southbound to Exit 164B/Route 1 southbound to Christiana Mall and back to Route 7 northbound.

Detour signage will be posted.