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).
Closest Airport to Colonial Heights, VA. The closest airport is Richmond International Airport (RIC). Distance from Richmond International Airport to Colonial Heights is 27,5 kilometers (17,1 miles). Richmond International Airport is located approximately 4,6 kilometers (2,9 miles) south of Highland Springs and about 12,5 kilometers (7,7 miles) southeast of Mechanicsville.