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.
Veolia North America and Lockwood, Andrews & Newnam Inc. are accused of professional negligence in a lawsuit filed by families of four Flint, Mich., children.
Washington state is weighing controversial proposal to breach four lower dams to boost recovery of threatened salmon populations, with potential cost in billions to replace their power generation.
Harris County Flood Control District has developed preliminary plans for 132 miles of stormwater conveyance tunnels that would reduce flood risk across the greater Houston area.