Clay Pit Pond Information

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Clay Pit Pond
Clay Pit Pond, July 2012, Belmont MA.jpg
Clay Pit Pond
Location Belmont, Massachusetts
Coordinates 42°23′38″N 71°09′54″W / 42.39389°N 71.16500°W / 42.39389; -71.16500
CLAY PIT POND Latitude and Longitude:

42°23′38″N 71°09′54″W / 42.39389°N 71.16500°W / 42.39389; -71.16500
Primary inflowsWellington Brook culvert
Primary outflowsculvert to Blair Pond
Basin countriesUnited States

Clay Pit Pond, also known as Claypit Pond, is a pond in the Boston suburb of Belmont in Middlesex County, Massachusetts situated between Concord Avenue and Belmont High School. It is a man-made pond, excavated as the source of clay for industrial brick-making on the site from 1888 to 1926. The Pond was formed in 1933 when the Wellington Brook was redirected to flood the site, making it an essential part of the drainage system for much of Belmont.

The Parry Brothers first opened a brickyard in the vicinity of the current Pond in 1888. In 1900, nearly all brick making operations in Middlesex County were merged into the New England Brick Company, [1] which acquired the site and increased production to 15 million bricks per year with a work force of 75. [2] By 1926 the highest quality clay was exhausted and the site was abandoned, reportedly leaving behind an 1884 Marion steam shovel at the bottom of the pit.

The Town of Belmont purchased the abandoned pit in 1927 for $22,500 to use as a waste dump site. However in 1933, the Town diverted the Wellington Brook through a culvert to flood the site with 80 million gallons of water, creating the Clay Pit Pond. [3]

In March 2010, the pond overflowed onto the road after two days of rain, closing down the adjacent high school. [4]

On May 16th, 2019, Belmont High School senior, Merrill Barnes, swam across Clay Pit Pond after jumping out the 2nd floor window as part of the class of 2019's senior prank.


  1. ^ "Great Combine in Bricks", Cambridge Tribune, November 17, 1900
  2. ^ Reconnaissance Survey Town Report: Belmont, Massachusetts Historical Commission, September 1980
  3. ^ Restoring the path around Belmont's Clay Pit Pond Matthew Repucci, Wicked Local Belmont, 2 June 2016
  4. ^ Patrick Declares State Of Emergency As Rain Storm Continue. WBUR radio station, 15 March 2010. Archived at WebCite.