Prisons/Jails : San Francisco Jail #3   1  2 Crosby Group is the structural designer for this over 700-bed secured facility. This four-story jail is being built next to the existing San Francisco jail. We have included special design criteria because it is built within a mile of the San Andreas Fault. This will ensure the site remains operational after a seismic event. Copyright © 2002-2005 The Crosby Group. All Rights Reserved. Design by Global 1 Design.