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Riverside Park

Hippopotamus Fountain map_it


This text is part of Parks’ Historical Signs Project and can be found posted within the park.

This piece by artist Robert J. Cassilly, Jr. is an interactive play sculpture featuring 14 hippopotami, two of which function as a spray fountain. The fiberglass hippos are part of the spray fountain, and children are invited to play on and around the sculpture. The Playground Project, Inc., a non-profit group that maintains the playground, commissioned the sculptures as part of the 1993 renovation of Riverside Park’s 91st Street Playground, which was subsequently renamed Hippopotamus Playground. Cassilly has designed numerous other pieces of animal art, especially for the St. Louis Zoo, in the city in which he lives.

Hippopotamus Fountain Details

  • Location: 91st Street Playground
  • Sculptor: Robert J. Cassilly, Jr.
  • Architect: Mark Morison
  • Description: Fourteen figures (reduced scale), two of which are spray fountains
  • Materials: Fiberglass reinforced polyester resin (silica gel coating); ears--vinyl ester resin with Kevlar fiber
  • Dimensions: H: 3'4" W: 2'7" D: 9'
  • Cast: ca. 1993
  • Dedicated: April 25, 1993
  • Fabricator: Robert J. Cassilly, Jr.
  • Donor: The Playground Project, Inc.

Please note, the NAME field includes a primary designation as well as alternate namings often in common or popular usage. The DEDICATED field refers to the most recent dedication, most often, but not necessarily the original dedication date. If the monument did not have a formal dedication, the year listed reflects the date of installation.

For more information, please contact Art & Antiquities at (212) 360-8143

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