Maintained by Friends of the Highline, the current installation is described on the Highline's website:
The inaugural artwork on the High Line, by artist Spencer Finch, is entitled The River That Flows Both Ways. The title of this work comes from the original Native American word for the Hudson River, Muhheakantuck. This work is located on the High Line in the semi-enclosed former loading dock between 15th and 16th Streets, where the High Line passes through the Chelsea Market building. Finch transforms the site's existing casement windows with 700 individually crafted panes of glass representing the water conditions on the Hudson River over a single day. To create the project, Finch photographed the Hudson River 700 times from the deck of a boat and then carefully matched each unique image to a pane of glass.This installation is presented in partnership with Creative Time, and the New York City Department of Parks & Recreation, and is made possible by a generous grant from The Rockefeller Foundation's New York City Cultural Innovation Fund. This project was made possible, in part, through the generous support of Chelsea Market and in-kind support from Jaroff Design and Mison Concepts, Inc.
I liked it.