California may be the runway leader among U.S. states in developing solar energy projects, but North Carolina is among the best of the rest.

Seattle's Bullitt Center took green design to new levels. And the results are exceeding expectations.

By the end 2017, two wind turbines off the coast of Virginia could be supplying 12 megawatts of power to the nation’s power grid, providing government energy regulators with valuable information about the practicality of large offshore wind farms.

After being idled for seven years, Washington, D.C.'s Watergate Hotel is being readied to once again provide high-end hospitality that might make guests forget it's role in history...at least for a little while.

The home of grunge, craft beer, and potent coffee is also the setting for several divergent tunnel boring machine (TBM) sagas

A bad night in February heightens concerns about a multi-billion transportation program already beset by skepticism.

Construction is set to begin next year on a five-mile, $100 million test track for the Hyperloop, a  transport system backed by entrepreneur Elon Musk.

The National Park Service and the National Geodetic Survey have announced that the Washington Monument is not quite the 555 feet, 5-1/8 inches tall as measured by government surveyors following its long-delayed completion in 1884.

Digital maps can tell us a lot about our infrastructure--and ourselves.

Nannie, the newest member of the DC Water’s $2.6 billion Clean Rivers Project team didn’t have much to say at her formal introduction on the banks of the Anacostia River on December 12. But then, tunnel boring machines (TBMs) tend to do most of their “talking” underground. Christened to honor