Construction to begin on San Ysidro Roundabout

Construction is set to begin on the San Ysidro Roundabout. SBRoads will host a pre-construction community meeting on Thursday, March 9, at 5 p.m. at Montecito Union School.

Most of the construction will occur near the intersection of North Jameson Lane and San Ysidro Road, and the northbound on-ramp at San Ysidro Road. The on-ramp is set to close on March 13, and will remain closed until 2025.

Work on the Olive Mill Roundabout continues, and some night construction will be conducted from 8 p.m. to 6 a.m. from Sunday, March 12 until Tuesday, March 14. All other work will occur between 7 a.m. and 4 p.m. as construction crews work drainage improvements, roadway base and paving.

Along Highway 101, the southern onramp at Olive Mill Road will be open by March 8, and the southern off-ramp at North Padaro Lane will be open by March 10. The southern off-ramp at Olive Mill Road will remain closed for up to seven months.

Closures on the northbound side of the highway include one lane from Santa Monica Road to Sheffield Drive and the on-and-off ramps at South Padaro and Santa Claus Lanes, which will be closed Monday through Thursday from 8 p.m. to 5 a.m., and from 9 p.m. to 5 a.m. on Sundays.

On March 12, one lane from Sheffield Drive to San Ysidro Road, excluding ramps, will be closed from 9 p.m. to 5 a.m. in preparation for San Ysidro Roundabout construction.

On the southbound side of the highway, one lane from Sheffield Drive to Carpinteria Avenue will be closed from 9 p.m. to 7:30 a.m. Mondays through Thursdays, and from 10 p.m. to 7 a.m. Sundays. From March 13 to March 16, the off-ramp at South Padaro and Santa Claus lanes will be closed from 9 a.m. to 3 p.m.

––Jun Starkey