The former Garrison Playground, 22 June 2015. According to a present-day NYC Parks Department web page[1], "This property, bounded by East 146th Street, Walton Avenue, and the Grand Concourse, was acquired by the city in 1913 and assigned to Parks in 1934. Garrison Playground opened in 1936, and reopened in 1940 after the widening of the Grand Concourse"[1] (which was a WPA project). The playground was open as recently as June 2014 (next image) but in June 2015 when I took these photos the entire block was being demolished, probably to make way for luxury condominiums.

References:

1. Garrison Playground, New York City Parks Department website (accessed June 2015).
2. NYC Parks Dept press release of May 4, 1937: “In the Bronx, a completely equipped small children's playground will be opened on 146th Street, between the Grand Concourse and Walton Avenue.” No mention of funding or labor in this news release but see the following reference for why it is a New Deal project.
3. New Deal Assistance in NYC Parks Department Projects, 1934-43.

The New Deal in NYC 1932-1943 | Frank da Cruz | fdc@columbia.edu