On November 10, 1967, WMATA announced that it had come to an agreement with the highway department that would give WMATA a two- year option to buy a 5 miles stretch of the right of way from Glebe Road (Virginia Route 120) to the Capital Beltway (now Interstate 495 (I-495)), where I-66 was to be built, and to operate mass transit in the highway's median strip.