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.
After a nearly four-decade drought, two separate air-rights projects with a combined cost of $1.7 billion are taking shape, including one set to be a major life sciences hub in the city.