Tom Brokaw of NBC News prepares script for a live broadcast from the Marina District. Electric wires being removed from unstable towers by city utility workers. Arresting sparks from broken wires was a priority in those areas with broken gas mains. Aerial view of roadbed collapse near the interface of the cantilever and truss sections of the San Francisco-Oakland Bay Bridge. Aerial view of the collapsed section of the San Francisco- Oakland Bay Bridge.
Vented sand contains-marine shell fragments.
Aerial view of collapsed sections of the Cypress viaduct of Interstate Highway 880. Aerial view of collapsed sections of the Cypress viaduct of Interstate Highway 880. Reinforcement bars exposed at the base of the Cypress viaduct near 14th Street. Side view of support-column failure and collapsed upper deck, Cypress viaduct. Support-column failure and collapsed upper deck, Cypress viaduct.