Dulles rail corridor engineers are looking for ways to squeeze costs out of the proposed Metro extension to Reston and beyond. In particular, they're concerned about the costs of getting over, under, or around the hill that Tysons Corner is built on.

At an elevation of 515 feet, Tysons is euphemistically described as the highest "natural" summit in Fairfax County. Mt. Murtaugh (most of us call it something more colloquial) is higher, rising to 567 feet.

(Thanks to DCist.)

posted: 9:58:34 AM