Updated 2 hours ago Getty Images Caltrans and SANDAG Build NCC crews will conduct an on-ramp closure on Interstate 5 in the City of Encinitas this weekend. The ramp closure will take place from Friday, June 4 from 9 p.m. and reopen on Monday, June 7 at 5 a.m. at the southbound I-5 ramp from Leucadia Boulevard. Download our NBC 7 mobile app for iOS or Android to get alerts for local breaking news and weather. Detour signage will be in place to guide motorists around this closure via northbound I-5 to La Costa Avenue. SANDAG This ramp closure is the eleventh in a series of 18-weekend ramp closures that will take place during the year in the cities of Encinitas and Carlsbad as part of I-5 Carpool/HOV Lane construction between Birmingham Drive and Palomar Airport Road.