For anyone wanting to get a peak under the shield of Bertha, the 57.5-ft-diameter tunnel-boring machine that dug a 1.7-mile tunnel under downtown Seattle, now is the time.
The completion of the first of two 300-ton nuclear waste melters at Hanford’s Vit Plant has contractor Bechtel National Inc. looking forward to continued progress on what is arguably the nation’s most complex construction project.
As demolition continued on the Hanford Plutonium Finishing Plant on June 8, one of the two dozen air monitoring stations positioned around the site sounded an alarm after detecting low levels of contamination.
A $10.4 million fix to replace what was supposed to solve all sorts of slippery situations on Portland’s Morrison Bridge over the Willamette River has started.
While keeping San Francisco's Moscone Center operational, the project team employs interim bracing systems and a sustainable water system in its expansion
California, Oregon and Washington are among the states moving forward with regulations and road maps for the construction and operation of building- and district-scale graywater capture and treatment systems for non-potable-water use, such as toilet flushing and irrigation.
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