The diagram shows this better than I can explain it. At a gage height of 1 foot, our stream has the amount of water (flow) represented by the blue area. Let's say it rains and the water rises to 2 feet. The additional flow is represented by the green area.
Closest Airport to Washington, D. C., DC. The closest airport to Washington, D. C. is Ronald Reagan Washington National Airport (DCA). Distance from Ronald Reagan Washington National Airport to Washington, D. C., DC is 4,8 kilometers (3,0 miles).
Airport-to-Airport transfers are a service of GO The Airport Shuttle serving Baltimore/Washington Thurgood Marshall International Airport (BWI), Washington Dulles International Airport (IAD) and Ronald Reagan National Airport (DCA). A: Our Airport-to-Airport service is a shared ride advanced reservation based service between Baltimore/Washington Airport (BWI), Washington Dulles International Airport (IAD) and Ronald Reagan National Airport (DCA). 2  You can make an advance reservation for transportation between any of the three airports.