Fog swallowed much of San Francisco's Golden Gate Bridge fireworks show as crowds overwhelmed streets, Muni shuttles and waterfront neighborhoods.

San Francisco streets turned to gridlock after a special Fourth of July Golden Gate Bridge fireworks show. City leaders are working to understand the root causes.

San Francisco officials asked for patience as thousands headed home Saturday night after just the third fireworks show from the Golden Gate Bridge in nearly 90 years.

San Francisco’s Fourth of July celebration along the city’s waterfront quickly turned into hours of gridlock, dangerous fireworks incidents and a surge in emergency calls. Thousands packed Crissy Field to watch fireworks launched from the Golden Gate Bridge.

Hours of traffic gridlock hampered people trying to leave after Fourth of July fireworks in San Francisco on Saturday night.

Sacramentans hoping to keep the Pride festivities going can take public transport all the way to San Francisco's Pride parade and festival.

San Francisco is preparing for a lively July Fourth as America celebrates its 250th anniversary. The big picture: Here are our favorite celebrations, travel tips and traffic disruptions to watch out for.