SP Architects, Inc. and the Maryland Aviation Administration(MAA) completed the new Concourse A expansion at Baltimore Washington International Airport (BWI). The restrooms have been updated to a new standard that will serve as template for planned bathroom renovations across the rest of the airport and combine some of the best design aspects from restrooms around the country and the world. Infinity Drain assisted with customized floor drains under the sinks and toilets for all of the restrooms