 Delaware Route 1D ( DE 1D ) is an auxiliary route of DE 1 in Sussex County . The route begins at DE 1 in Midway , where it heads southwest concurrent with DE 24 on four @-@ lane divided John J. Williams Highway . The road passes homes and businesses as it transitions into a three @-@ lane road with a center left @-@ turn lane . DE 1D splits from DE 24 by heading northwest onto two @-@ lane undivided Plantation Road concurrent with DE 24 Alt . The road heads through a mix of farmland and residential development . Upon reaching Five Points , the road curves southwest and comes to an intersection with DE 23 . At this point , DE 1D ends while the road continues southwest as DE 23 and DE 24 Alt . DE 23 heads north at this point to immediately intersect US 9 / DE 404 , which head east to provide access to DE 1 . DE 1D was designated by 1996 . The portion of the route along Plantation Road became concurrent with DE 24 Alt. by 2006 . 
