WebThe New Irvington Tunnel Project celebrated its first year of construction this past September. When complete the new tunnel will provide a seismically-desi... http://tunneltalk.com/New-Irvington-Tunnel-Jan10-Advertised.php

David Tsztoo

WebOct 8, 2013. Final breakthrough completes 18,660ft of conventionally mined tunneling on the New Irvington Water Tunnel for the San Francisco Public Utilities... Web17 jun. 2010 · The New Irvington Tunnel contract, worth approximately $226 million, was awarded to a joint venture comprised of Southland Contracting, Inc. and Tutor Perini. The project ... fix it richmond

California Views Engineering News-Record

WebLocated in Sunol, CA, the $255-million New Irvington Tunnel Project conveys water … WebThe Phase I centerpiece is a 30-foot (9 m) excavated-diameter TBM-driven tunnel extending three miles (4.8 km) at a depth of 250 feet (76.2 m) through meta-sedimentary rock formations. This “main spine” tunnel was supported by expanded precast concrete segments, and has a final lining consisting of cast-in-place concrete. WebDavid Tsztoo's 8 research works with 62 citations and 1,049 reads, including: Geotechnical Investigations and Ground Characterization: The New Irvington Tunnel Project fixitright.ca