In-water work restrictions are so tight in the salmon-filled rivers of western Oregon that the Oregon Dept. of Transportation decided to employ a top-down bridge construction method to replace a section of Interstate 84 east of Portland. If all goes well, say ODOT officials, the method may be adopted on a more frequent basis.
Offshore wind seeks a place in the U.S. power mix, with the start-up imminent of a 30-MW Rhode Island wind farm, America’s first. European competitors and oil-sector veterans are bringing technology and cost efficiency.