Bay Area Rapid Transit’s Board of Directors has approved construction of a 4.7-mile single-bore tunnel as part of the $4.8-billion second phase of a program to extend service to Santa Clara County’s Silicon Valley.

Plans to redevelop one of the Port of San Francisco’s historic pier buildings into a retail center have suffered a setback, following the developer’s withdrawal from the project.

The U.S. Environmental Protection Agency awarded $1.9 million to a team of universities, led by Marc Edwards of Virginia Tech, to detect and control lead in drinking water.

Milan-based Salini Impregilo S.p.A. has named Goldman Sachs to advise on the possible sale of the $600-million-a-year paving unit of its U.S. subsidiary Lane Construction Corp.

Efforts to nix South Carolina’s nuclear construction fee to ratepayers could imperil Dominion Energy’s pending offer to purchase one of the utility owners of the canceled V.C. Summer nuclear expansion project.

The long-delayed Kitimat liquefied natural gas project in British Columbia got a boost in late April when LNG Canada selected Fluor Corp. and partner Yokohama-based JGC Corp. as the EPC contractor for the natural gas export-plant portion of the $40-billion development. Industry analysts expect Fluor’s portion of the award could be as much as $7 billion. 

The Michigan Public Service Commission gave final approval recently to a nearly $1-billion natural gas-fired plant along the St. Clair River near the Canadian border.

Many previously identified problems continue to plague the complex waste treatment plant being built to immobilize much of the 54 million gallons of radioactive and chemical waste stored at the U.S. Energy Dept.’s Hanford site in Washington state, prompting government investigators to recommend stopping work on the $17-billion project, underway since 2002, when those problems recur.