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Report an issue with a tree or request various tree services to the city using our online portal or mobile app, SeeClickFix

People and pets should avoid contact with the Alewife Brook and parts of the Mystic River and the lower Charles River from May 23 to the early morning of May 25 due to the release of stormwater mixed with sewage into the brook and rivers.

Department of Human Service Programs staff are available to help families complete their online Summer Lottery application throughout the application period.

Harvard Book Store, the Harvard University Division of Science, the Harvard Library, and the Cambridge Public Library welcome Dr. Anjana Khatwa—award-winning earth scientist, TV presenter, and advocate for diversity in the geosciences and nature—for a discussion of her book The Whispers of Rock: The Stories That Stone Tells About Our World and Our Lives, a 2025 New Scientist Best Book of the Year. Registration is required.

All levels welcome for a trauma-informed outdoor yoga and mindfulness class. Modifications and chair-based options available.

Fees charged when applying for a plumbing permit

Looking for some basic computer or mobile device guidance? Want to learn how to access audiobooks and eBooks? Stop by at the O'Neill Branch Library for a tech help appointment! Sessions will be limited to 30-minutes for each patron. We can help you with: accessing library eBooks, audiobooks, and other eResources on your devices e-mail and searching the web smartphone and mobile app questions We are not able to help you with: installing advanced software programs completing online transactions for you computer hardware and technical maintenance Registration is strongly encouraged but not required. If you have any questions, please contact 617-349-4023

The Cambridge community is invited to join the City's Department of Veterans' Services Saturday, May 27, at 9:30 a.m., at Cambridge Cemetery, 89 Coolidge Avenue, to decorate our Cambridge veterans’ graves. A formal observance will also be held on Monday, May 29, at 10:30 a.m., at Cambridge Common

The City of Cambridge announced it has begun distribution of over 21,000 at-home test kits to prioritized high risk and disproportionately impacted populations in Cambridge. The City received this allocation of iHealth Labs COVID-19 rapid antigen test kits from the Commonwealth of Massachusetts.

Report a missed curbside trash, recycling, compost or yard waste pick-up to the city using our online portal or mobile app, SeeClickFix.