That's Rock Hill, and there's a fairly serious drop between the west end of the curve, which has an elevation of 300 feet, and the east, which is only 250 feet.
The straight-line distance between the two ends is only about 500 feet, so if you do a little calculation, a road that went straight through would have a grade of about 10%, which is unsafely steep.
To improve the grade, you have two ch
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Fairfax County General