The remainder of the North Central Freeway, now part of I-70S and six lanes wide, would have continued along the B&O railroad corridor, passing beneath Takoma, Washington, D.C. in a 1/2-mile tunnel, and terminated at a large wye junction with I-495.

In 1959, the Mass Transportation Plan outlined a North Central Freeway routing that would parallel Georgia Avenue through northern D.C.

The I-70S and I-95 portions of the North Central would be routed along the existing B&O Metropolitan Branch RR (today's WMATA Red Line).

Accordingly, this avoids "the substantial relocation of persons, loss of taxable property and disruption of neighborhoods that would result from construction of the Northeast, North Central and Northwest Freeways proposed in the 1959 plan.

[4] The enormous opposition to the 1964 and 1965 alignments for the North Central Freeway led to a supplementary study being conducted in 1966 that more closely examined routings that paralleled the existing B&O railroad corridor.

Traffic with destinations within the District, as noted above, were expected to use the street grid; the NCPC further justified this by stating that the Interstate Highway System as defined did not guarantee direct inner-city access.

Furthermore, the NCPC also baldly stated that the construction of the North Central Freeway would simply provide another way into the District for commuters, which was seen as undesirable and unnecessary.

The plans included the 3/4-mile Rhode Island Ave.-Michigan Ave. tunnel, as well as revisions to an earlier 1970 proposal that would reduce the number of homes required to be removed from 69 to 34.

Reginald H. Booker, an advocate for civil rights and urban reform, led the Emergency Committee on the Transportation Crisis (ECTC) to campaign against the freeway.

[10] The movement against the North Central Freeway was notable for its coalition-building efforts, uniting Black activists, environmentalists, and urban planners.

[11] This diverse group highlighted the project's potential environmental and social injustices, leveraging public forums, protests, and media engagement to raise awareness and pressure city officials.