 Construction on the second lane (widening) on the section between Brazo Largo and Ceibas (km markers 115 to 160) was started on May 1997, opening to the public on 12 October 1999.National Law 25,680 published in the Official Bulletin on 3 January 2003 designates the section from Brazo Largo to Ceibas as "David Della Chiesa" road.The cities with more than 5,000 inhabitants crossed by the road (from South to North) are