Caltrans will be closing 19th Avenue from Sloat Blvd. to Holloway Ave. in both directions from Friday, May 22 at 7 a.m. to Monday, May 25 at 10 a.m. The closure may impact school drop-off and pickup traffic, in addition to weekend travel. Students, families, and staff should expect major delays and detours, and plan for increased travel time, especially for school commutes.