QB Redux: I think that I shall never see…

WHEN I SHOWED A TRANSFORMATION FOR QUEENS BOULEVARD that included trees over the subway beneath the wide street, some people naturally had some doubts about how well the trees would grow. But look at these trees above the similar “cut and cover” subway at Broadway and 86th Street in Manhattan. “Cut and cover” is a construction process in which the street is dug up, the tracks are laid, and then the street is put back like a roof. I haven’t examined the drawings for either Queens Boulevard or Broadway, but the details should be similar.

Imagine how much better Broadway would look if the trees chosen had come from one of the great street tree species that form majestic canopies (they weren’t), or if the trees had been properly planted for healthy and mature growth (ditto). That means not only giving the roots enough room to spread out, but also planting trees like sycamores in conditions that allows their roots to intermingle, because we know now that many of the great street species share disease resistance through their roots. And today we have systems like Silva Cells for conditions where we know soil compaction and root spread can be a problem.

Now imagine how much worse Broadway would look without any trees…

BWAY_7656 BWAY_7657

Made in  the shade at the corner of Broadway and West 86th Street, perfect for a hot August afternoon.

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A New York City Subway Cut and Cover Construction Detail

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