Proceedings of the International Conference on Deep Foundations, Seepage Control and Remediation (41st Annual), 2016, New York, NY, (DFI)
ROCK SOCKETED DRILLED SHAFTS FOR THE GOETHALS BRIDGE REPLACEMENT
John P. Turner, Steven S. Dapp, Dan A. Brown
The Goethals Bridge Replacement (GBR) spanning the Arthur Kill Waterway between Elizabeth, NJ and Staten Island, NY consists of a dual-span 1,982.5-ft long cable-stayed bridge with approach spans of 2,545 ft on the NJ side and 2,788 ft on the NY side. The bridge is supported on over 200 drilled shaft foundations ranging in diameter from 4.5 ft to 10 ft and socketed into Passaic Formation siltstone. Drilled shaft resistances for design were based on load tests as described in a companion paper (Dapp et al. 2016). This paper presents the main foundation design considerations and challenges. The approach to construction of the rock sockets, with a focus on quality in order to support the use of high nominal values of side and base resistance, is described. Lessons learned from this project and their application to future similar projects are presented.
|article #2381; publication #1022 (AM-2016)|