TODAY: Critical Mass, 6 p.m. Bicycle ride will begin from Justin Herman Plaza and end all up in your face. You've been warned.
SUNDAY: Hairrison Street Fair/Bear Week, 11 a.m. to 6 p.m. Large homosexual men, who think of themselves as a minority of sorts, will have a big ol' party in SoMa.
That means these streets will be closed during that time: Harrison from 11th Street to Division, 12th Street from Harrison to Folsom, Bernice from 12th Street to Division, and Isis from 12th Street to Division.
Bus lines affected? The 9 San Bruno, 12 Folsom-Pacific, 27 Bryant, and 47 Van Ness.
SUNDAY: Sunday Streets (yay!) will go down along the Embarcadero from Bayview to Chinatown from 9 a.m. to 1 p.m. Which? Will result in the following street closures: Washington from Kearny to northbound Embarcadero, northbound Embarcadero from Washington to King, eastbound King from Second Street to the Embarcadero, Terry Francois Boulevard from Third Street to Mariposa, Illinois from Cargo Way to Terry Francois Boulevard, and Northbound Third Street from Cargo Way to Oakdale.
Bus lines gone wild? 9 San Bruno, 10 Townsend, 12 Folsom-Pacific, 19 Polk, 24 Divisadero, 44 O'Shaughnessy, 48 Quintara-24th Street, and 54 Rutland.