Walk east from your building near 61st Street this month, cut down to the river, and the path holds. Pavement runs clean past Andrew Haswell Green Park, over a new pedestrian bridge that touches down at East 54th, and keeps going toward the 50s without a single detour onto traffic. Then, somewhere past 53rd, the water disappears behind the United Nations campus and the sidewalk simply stops being a sidewalk along the river. You're back on First Avenue, walking past loading docks and security barriers, until the path picks up again once you're south of 41st Street at Waterside Plaza.
That gap in the middle isn't a rumor or an old complaint that outlived its shelf life. It's the actual, current shape of the East River waterfront in Midtown East: two finished stretches with a real, unbuilt hole between them, and the hole sits exactly where you'd least expect a construction delay to matter, directly alongside the UN.
Two Ends, Done
The stretch of river path most people mean when they say "the greenway finally opened" runs from East 53rd to East 61st Street. The New York City Economic Development Corporation, which oversees the broader effort, describes the project as part of a plan to "close the loop" of the Manhattan Waterfront Greenway, giving the city continuous open space along its edges instead of the patchwork it's had for decades. That 53rd-to-61st segment, along with the adjoining second phase of Andrew Haswell Green Park, is now built and open to the public, connecting north to the park at 62nd Street through a pedestrian bridge that lands at East 54th.
It didn't happen quickly. The city announced capital funding for that section back in April 2017, and a design team led by Stantec started work that October, after years of planning with the neighborhoods the greenway touches: Turtle Bay, Kips Bay, Sutton Place, Tudor City, and Murray Hill. Part of that design process included bringing on an environmental artist through an open competition. Stacy Levy was chosen from a field of 47 applicants after a public presentation in February 2018, and her work is now part of the built landscape you walk through. If you've noticed the Alice Aycock Pavilion along that stretch, pile repairs supporting it were slated to begin in late 2024, one more sign that this segment is finished enough to need maintenance rather than construction.
South of that, at the other end of the gap, the oldest piece of the puzzle has been sitting there the whole time and most people walk past it without registering that it's part of the same greenway. The Waterside Pier section, between 38th and 41st, is a former Con Edison structure the city converted years ago, with construction wrapped up in 2016. It's the quiet bookend nobody talks about because it never had a ribbon-cutting moment. It was just already there.
The Middle Is Still a Drawing
Here's the piece that changes how you should actually plan a river walk this year. The section between 41st and 53rd Streets, the one that runs directly past the United Nations, is called the UN Esplanade, and it is not built. It's not under construction. As of the city's own project page, it's still in design. A team led by AECOM was selected through a public process and began work in November 2023, with the design phase expected to wrap sometime in 2026. Design finishing this year does not mean shovels go in the ground this year. It means the drawings get approved, and then the segment enters whatever queue comes next for funding and construction.
If you've been waiting for the greenway to feel finished before you bother learning the route, you'll be waiting a while longer specifically at this stretch. Everyone assumes the missing piece is somewhere quiet and easy to fix. Instead it's the most complicated few blocks on the whole waterfront, running alongside an international campus with its own security perimeter, and that's exactly why it's taking longer than either of the segments on either side of it.
Three Places Worth the Detour
The forced detour around the UN Esplanade isn't dead time. It runs you straight past some of the neighborhood's better-kept pieces, the kind of spots that don't show up on a tourist's list because they were never built for tourists.
- Greenacre Park, on East 51st between Second and Third Avenues, is a pocket park with a 25-foot granite waterfall that drowns out the street noise almost the moment you step in. Designed by landscape architect Hideo Sasaki and opened in 1971, it's privately maintained by the Greenacre Foundation, founded by Abby Rockefeller Mauzé, and it's listed on the National Register of Historic Places. Carol's Café operates inside the park, serving sandwiches, coffee, and ice cream to whoever wants to sit under the honey locust trees for twenty minutes.
- MacArthur Playground sits on the FDR Drive between 48th and 49th Streets, built by Alcoa Plaza Associates as part of the original United Nations Plaza development between 1947 and 1953 before it passed into city parks jurisdiction on February 28, 1966. It has chess tables, a spray shower, and an unobstructed view across the river to Queens, the kind of amenity mix that tells you this was built for people who actually live nearby, not for anyone passing through.
- Peter Detmold Park, named for the Turtle Bay Gardens tenant who once served as president of the Turtle Bay Association and founded the Turtle Bay Gazette, sits in the same historic pocket of 48th and 49th Streets between Second and Third Avenues. Detmold and fellow resident Jim Amster started the association specifically to stop 49th Street from becoming a commercial corridor, and the quiet residential character of these blocks today is the direct result of that fight.
The Association Still Doing the Work
The Turtle Bay Association that Detmold founded is still active, and its calendar this year is a decent measure of how much neighborhood energy exists independent of whatever the city's construction timeline is doing. Earlier this year the group ran an "It's My Park" volunteer day, the kind of hands-on cleanup event that keeps small green spaces functional between city maintenance cycles, and in June it hosted a member happy hour at Ánimo's newly renovated space, the kind of low-key gathering that only makes sense in a neighborhood where people actually know their neighbors' names. None of that depends on whether the UN Esplanade opens in 2027 or 2029. It's just what the association does every season, regardless of what the waterfront looks like that year.
What This Actually Means for Your Walk
The honest version of the story is this: Midtown East's river path is real for about two-thirds of its planned length, and the missing third runs through the hardest section to build. If you've been avoiding the whole idea of a riverside walk because you heard "it's not finished," that's true only for the seven blocks past the UN. Everything from 53rd up to 61st is finished pavement, and everything from 38th to 41st has been finished since 2016. Plan your route around the middle instead of waiting for it, and you'll get more use out of this stretch of the East Side than most of your neighbors currently realize is available.
If you're weighing what a location like this is actually worth, not just this month's walk but the kind of long-term neighborhood investment a finished greenway eventually represents, that's a conversation worth having with someone who tracks this corridor closely. Royce Cara Berler works Midtown East and the surrounding pockets of Manhattan every day. Let's Connect.
