Photograph as originally submitted to this page in the Historical Marker Database www.HMdb.org. Click on photo to resize in browser. Scroll down to see metadata.

Photographer: Barry Swackhamer
Taken: January 14, 2014
Caption: Detail from The Embarcadero Freeway Marker
Additional Description: Step-by-step demolition: How the structure will come down.
1) Breaking upper deck
2) Breaking lower deck
3) Removing debris
4) Repaving road

Preventing disaster
As steel restrainer hinge clamp is fastened to the columns at structure to prevent lateral movement.

Concrete pulverizer
This equipment crushes concrete, slowly chewing away at structure with a high-grade steel jaw, exposing rebar frame.
Submitted: January 23, 2014, by Barry Swackhamer of Brentwood, California.
Database Locator Identification Number: p265214
File Size: 3.330 Megabytes

To see the metadata that may be embedded in this photo, sign in and then return to this page.