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).
The nearest airports to Washington, DC are Reagan International Airport (DCA) which is right near town and Dulles Airport (IAD) which is west of town but is the major internat â¦ ional airport for the area. + 5 others found this useful. Roy Zhang.