Northern Virginia city's longstanding issues are set for remediation through RiverRenew—a $665-million program that features use of a 380-ton tunnel boring machine to create a new overflow storage tunnel.
Under a $5.7-million task order from the National Park Service, a team of HDR and Moffatt & Nichol is working on design and other early-stage work for an initial segment of the project.
From the ground level, the U.S. Capitol dome appears much like it did almost 150 years ago, but up-close inspection reveals an aging icon in desperate need of restoration.
Steadily improving market conditions, plus some acquisitions, are producing higher revenue numbers for many large design firms throughout the mid-Atlantic region.
Owners stepped up their regional activity, launching billions of dollars of major projects in Delaware, Maryland, Pennsylvania, Virginia, West Virginia and the District of Columbia.