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Avoid contact with the Alewife Brook in Cambridge due to potential harmful bacteria and other pollutants. Warning in effect until 5 a.m., January 28, 2023. People and pets should avoid contact with the Alewife Brook and parts of the Mystic River from January 26-28 due to the release of stormwater mixed with sewage into the brook.

2005 report about the an Urban Forest Canopy Assessment conducted to develop a baseline estimate of the tree canopy cover in Cambridge and to estimate the value of environmental benefits provided by the urban forest.

Construction has begun on the City of Cambridge's first standalone Fire Training Facility. This modern facility is designed to provide critical resources to enhance the department's training capabilities, maintain certifications, and provide a hands-on immersive experience to ensure firefighters can respond effectively to any emergency further supporting the department's ability to protect the community.

Complete this form and return to ECC to opt out of CodeRED emergency alert notifications

911 is for emergencies only. 911 Dispatchers answer both 911 calls as well as general or business calls made to the Cambridge Police and Cambridge Fire business numbers (617-349-3300 for Police and 617-349-4900 for Fire) as well as other public safety non-911 numbers. Reserving 911 for emergencies enables 911 dispatchers to easily recognize and give highest priority to emergency callers while still being able to receive and promptly answer calls for service or non-emergency calls.

JAS is holding a community meeting on June 30, 2026 from 6:00 p.m. to 7:00 p.m. at Lesley University Hall Room 3-094 (1815 Massachusetts Avenue, Cambridge) to provide updates to the community on their plan to develop affordable housing at 1826 & 1840 Massachusetts Avenue in Porter Square. To RSVP, please visit the link here: https://justastart.tfaforms.net/f/MassAve. To see the meeting flyer, please click here.

Explore what Artificial Intelligence (AI) is (and is not), learn how to create effective prompts, and how to recognize common AI errors. This class will be delivered by a DOORS program instructor. To learn more about the DOORS program please go to: https://www.digitalpsych.org/doors-program.html To view and register for other Basic Tech Classes at the Library, please go to tinyurl.com/basictechclass. Registration is encouraged, but not required.

Information about how to request a permit to reserve one of Danehy Park's picnic areas.

The Food Business Incubator Program offers technical assistance and other resources to food businesses in Cambridge, with a focus on women- and minority-owned businesses as well as first-time food entrepreneurs.

Cambridge Firefighters again partner with United States Marines to bring toys to children in need