Stantec welcomed three strategic hires in water/wastewater engineering, hydraulic modeling, tunneling, and combined sewer overflow (CSO) storage and conveyance to its growing Tri-State Water practice in response to rising priorities in the local market.
The District of Columbia Water and Sewer Authority (DC Water) named and blessed the tunnel boring machine that will mine the final segment to complete the Anacostia River Tunnel System. This will make a much healthier Anacostia River by reducing combined sewer overflows (CSOs) by 98 percent and significantly reducing flooding in northeast DC.
DC Water’s newly opened Anacostia River Tunnel System was pressed into service in mid-April as heavy rains battered the District of Columbia. About two inches of rain fell over a three-hour period, far more than the city’s combined sewer system can handle. During the storm, the new tunnel prevented approximately 170 million gallons of combined sewage and stormwater from being discharged to the Anacostia River.
The Departments of Environmental Protection (DEP) and Design and Construction (DDC) announced the addition of approximately 115 specially designed rain gardens to the northern Queens neighborhood of Flushing.