President Biden's upcoming visit to the Bay Area is expected to cause traffic disruptions in various parts of San Francisco, including downtown, Nob Hill, Chinatown, and along Highway 101. The president is scheduled to arrive at Moffett Federal Airfield in Mountain View around 10:40 p.m., before heading to San Francisco at approximately 11:15 p.m., according to Roll Call's calendar.

During his visit, President Biden will attend two fundraisers, one of which will take place at the Portola Valley residence of Vinod Khosla, a billionaire venture capitalist with diverse investments, including software companies, DoorDash, and Instacart. To reach the fundraisers, the presidential motorcade will utilize Highway 101, entering San Francisco on Thursday and departing the city on Friday.

It is worth noting that this will not be President Biden's first visit to the Bay Area. He previously visited in February, attending a dinner in San Francisco and another fundraiser in Los Altos Hills, a South Bay enclave.

To accommodate the president's visit, the San Francisco Municipal Transportation Agency has announced street closures. California Street will be closed between Powell and Taylor streets, while Mason Street will be closed between Pine and Sacramento streets throughout Thursday and Friday. These closures will have an impact on traffic flow in the affected areas.

In addition to the street closures, the transit officials are making adjustments to the 1 California bus line and the California Cable Car Line route. The 1 California bus line will be rerouted, and buses will serve the California Cable Car Line route due to the street closures. Commuters are advised to visit the SFMTA's website for more detailed information about the route changes and alternate stops.

President Biden's visit to the Bay Area is expected to generate significant traffic disruptions in San Francisco, particularly in downtown, Nob Hill, Chinatown, and along Highway 101. The San Francisco Municipal Transportation Agency is urging residents and visitors to plan their travel accordingly and consider alternative routes if possible.

Throughout his visit, President Biden seeks to strengthen his ties with the Bay Area community and raise funds for future initiatives.