 What is now DE 1A was originally a part of DE 14 between 1936 and 1942 . The road was designated DE 14A by 1966 . In the 1970s , DE 1A was designated along DE 14A for a few years before DE 14A was decommissioned in favor of DE 1A . Between 2002 and 2006 , a streetscape project revitalized the Rehoboth Avenue portion of the route and a roundabout was added at the entrance to Rehoboth Beach . 
