Divers Complete Installation of Critical Mechanical Plug In Delaware Aqueduct Shaft to Ensure Stability Ahead of Repair
May 10, 2012
Environmental Protection Commissioner Carter Strickland announced the completion of work to strengthen a critical shaft of the Delaware Aqueduct, helping to lay the groundwork for repair of the aqueduct leaks. The work is part of DEP's Water for the Future program, a $2.1 billion initiative that will ensure clean, reliable and safe drinking water for nine million New Yorkers for decades to come.
- In July, DEP announced that the first geotechnical test borings were underway for the construction of an access shaft in the Town of Newburgh and in the Town of Wappinger. Construction of shafts in Newburgh and Wappinger will enable the construction of a new tunnel to bypass a leaking section of the Delaware Aqueduct near Roseton. These were the first of several planned borings to obtain geophysical data for the design and construction of the bypass tunnel. DEP will break ground on the shafts for the bypass tunnel in 2013, and will begin the bypass connection in 2020. Geotechnical test borings are used to obtain geophysical data for the design and construction of the bypass tunnel, including basic underground rock formations and other conditions that will dictate the design of the tunnel, the selection of equipment, and construction techniques.
- In June, DEP started the second phase of a ground-breaking study to evaluate the effectiveness of mitigating leaks in the Wawarsing areas by adding lime to water in order to seal the cracks from within the tunnel. The $4 million project, which entails building a small-scale water system that replicates full-scale water supply conditions, will help the city better determine if full-scale application of lime will be successful.
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