Caltrans and SANDAG will close the southbound I-5 off-ramp to Manchester Avenue in Encinitas Thursday for ongoing construction work.
SANDAG and Caltrans will continue overnight road and rail work in both north and south county.
Work crews will paint road striping on San Elijo Avenue between Kilkenny and Aberdeen drives in Cardiff-by-the-Sea.
Construction crews began roughly five weeks of work placing temporary concrete barriers on Interstate 5 between Encinitas and Carlsbad.
A section of Chesterfield Drive in Encinitas will be closed to improve bicycle and pedestrian safety, according to SANDAG.
Service will be suspended for work that is part of the San Elijo Lagoon Double Track Project, SANDAG announced.
The workshops are scheduled at seven locations around San Diego County.
The crash happened on Interstate 5 at Lomas Santa Fe Drive in Solana Beach.