Atlanta Botanical Garden Walkway Collapse Investigation

Atlanta, GA

Market: Bridge

Client

Wasson, Sours & Harris, P.C.
Freeman Mathis & Gary, LLP

Completion

2010
Atlanta Botanical Garden Walkway Collapse Investigation
Atlanta Botanical Garden Walkway Collapse Investigation
Atlanta Botanical Garden Walkway Collapse Investigation

On 19 December 2008, a large portion of the S-shaped, steel-framed walkway under construction at the Atlanta Botanical Garden suddenly collapsed during concrete placement operations.  The approximately 575 ft long, cable-stayed canopy bridge was designed to be supported by four masts along the curved spline segments and two opposing inclined columns at the transitional straight spline segments.  At the time of collapse, the walkway structure was supported on temporary shoring tower frames and helical piles.  SGH investigated the cause of the collapse.