Monticello Freeway
The Monticello Freeway was a planned freeway that was a part of the 1969 Northern Virginia Major Thoroughfare Plan. The proposal was to connect Arlington directly to Manassas as an Interstate, hence its name freeway. The plan overall was turned down due to environmental, preservation and financial issues. Parts of the freeway are now where present-day Braddock Road is located.
The Freeway
Arlington County
The Monticello Freeway would have begun at another proposed highway as part of the 1969 NOVA Major Thoroughfare Plan (NOVAMTP). The road would make an ending trumpet interchange at the Four Mile Run Expressway, which is now modern day Virginia Route 120. The freeway would only be within the boundaries of Arlington County for about a mile and a half before being in Fairfax County for no more than a fraction of a mile. From there, the freeway would enter the western boundaries of the City of Alexandria.
Alexandria City
Like Arlington County, the freeway would have not been in the boundaries of Alexandria for long. Its prime purpose would be to serve as a three-way interchange between VA-236 and Interstate 395. It then would have replaced Braddock Road as it would have entered Fairfax County in Annandale.
Fairfax County
Had the freeway been built in Fairfax County, Burke Lake and Braddock Road wouldn't have preexisted. The freeway would have gone through the regions of Annandale, Burke, Fairfax Station and the southern outskirts of Clifton before crossing Bull Run into Prince William County.