Dam Emergency Action Plan

When maintained and operated correctly, dams are a safe and effective way to manage water supply and security for communities.  Both the Hobbs Brook and Stony Brook Dams were constructed in the 1890s and remain today in good working condition.  These dams are considered "High" hazard by Federal and State regulators based on anticipated down-gradient inpacts in the unlikely event of their failures, and thus are regularly maintained and inspected for structural integrity.

Common Watershed Division dam maintenance activities include:

  • Regular (~10/year) inspections conducted by CWD staff;
  • Biyearly inspections conducted by professional engineers;
  • General maintenance of slopes and gates;
  • General maintenance of auxiliary spillways; and
  • Operation of safe reservoir levels.

 

Hobbs Brook Dam Upstream Slope

 

The Cambridge Water Department is currently updating the Emergency Action Plan with an expected release in early 2014.