PROJECT OVERVIEW

“WHAT A LOVELY VIEW FROM, HEAVEN LOOKS AT YOU FROM THE BROOKLYN BRIDGE”

(The Brooklyn Bridge, Barry Manilow | Songwriters: Jule Styne & Sammy Cahn)

 

BROOKLYN BRIDGE REHABILITATION

REHABILITATING ONE OF THE CITY’S ICONS

One of the more recognizable structures in New York City, the Brooklyn Bridge has a storied history and serves as one of the main connections for vehicular traffic between the boroughs of Manhattan and Brooklyn. Construction of the bridge began in 1870, led by the engineer John Roebling, and was opened in 1883.

As with any structure constructed over 100 years ago, restorations are required. The Brooklyn Bridge’s approaches are constructed of brick and concrete blocks, typically referred to as “arch blocks”. The arch blocks are very strong and capable to resist typical loading conditions; however, it was determined that some retrofitting was needed to enhance the seismic capacity of the arch blocks.

BROOKLYN BRIDGE REHABILITATION

GEODesign was retained to perform seismic analyses of the bridge approach foundations for the purpose of providing foundation stiffness parameters for use by the structural engineer in their analysis of the existing and retrofitted structure. Various techniques were used to strengthen the arch blocks, including in-filling portions of the arch blocks with concrete, improving the soil by jet grouting, and installing micropiles in selected areas.

The Solutions Unearthed

Client: Parsons Corporation

© 2019 GEODesign, Inc.