A lot can happen in 24 hours. Here’s a look at the notable meetings, public appearances and events that are going on in the Bay today. Did we miss something? Tell us in the comments or shoot me an e-mail: awright@baycitizen.org. 9 a.m. – Mariela Castro Espin, director of the Cuban National Center for Sex Education in Havana and daughter of Cuban President Raul Castro, will take a private tour ......

There is going to be some bridge drama this Memorial Day weekend, a historically traffic-heavy holiday. The Dumbarton Bridge will close for seismic work from 10 p.m. Friday to 5 a.m. Tuesday. Drivers are being advised to plan ahead for travel time and other routes, like the San Mateo-Hayward Bridge, and can get real-time updates by calling 511 or visiting www.511.org. Not to be outdone, the Golden Gate Bridge also will ......

Court workers represented by the Service Employees International Union Local 1021 voted yesterday to give their bargaining unit the right to call a strike if contract negotiations remain deadlocked. Union representatives announced that 95 percent of members voted to support a strike at a press conference at the Hall of Justice today. Court workers are renegotiating their contract and are none too happy with a proposed 5 percent pay cut. ......

Heal the Bay released its annual “report card” that ranks more than 650 California beaches. The report rates cleanliness on an A to F scale based on weekly levels of bacterial pollution tracked from April to October 2011. The better the grade, the less likely you are to get sick from taking a dip in the ocean. The good news: San Francisco County beaches received passing grades and even improved from ......

President Barack Obama arrived in the Bay Area yesterday, and he is still here! But not for long. 8:30 a.m. — Wave your checkbooks! The president will be at a private fundraiser at the Farimont Hotel in San Jose. 10 a.m. — Wave goodbye! Air Force One will depart from Moffett Field in Mountain View. Did you know its Public Works Week? Well, it is. And the official Public Work Week 2012 ......