Geotechnical drilling was set to begin yesterday on the 710 Tunnel Technical Study in the L.A. area. Currently the 710 freeway ends along the city of Los Angeles-Alhambra boundary but was intended to run north to a junction with the 210 and 134 in Pasadena. The tunnel technical study will assess the feasibility of building a tunnel to complete the segment. Caltrans and CH2M HILL will be performing the borings which will go up to 250-ft deep. Seismic lines will be performed as a part of the study as well. Source: LA Times.
The $14.8 billion project that has constructed a dizzying array of underground highways, bridges, ramps and tunnels in the middle of Boston has finally ended. The end of 2007 apparently was also the end of the Bechtel/Parsons Brinkerhoff joint venture that designed and built the project. More… (Photo by brewrat)
PITTSBURGH, PA – January 15, 2010 – Nicholson was awarded a subcontract by Traylor Bros./Frontier-Kemper JV that includes temporary shoring and the construction of the permanent reinforced concrete diaphragm walls for the a new light rail station near the University of Washington’s Husky Stadium in Seattle. The project owner is Sound Transit and the work will be completed in a joint venture with Condon-Johnson & Associates. [Editor] Click through for the entire press release from GeoPrac.net sponsor Nicholson Construction. [/Editor] […]