An excellent concept
fully consistent with an underground eastern extension of the SouthEast Freeway
This was the Millennial Gateway Project proposed by Atlanta Georgia architect Rodney Cooke
Its centerpiece was an arch de triumph atop the Barney Circle overpass-tunnel of the existing eastern end of the SouthEast Freeway in Washington, D.C.
IIRC, the D.C. City Council rejected this, owing to their reported uncertainty over the electric bills for its lighting.