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Come join the Cambridge Police Department and other community partners to celebrate National Night Out at Donnelly Field. The event is free and open to all. There will be numerous activities including games, slides, races, an introduction to lacrosse, soccer, volleyball, obstacle course, face painting, dunk tank, food & more. Tuesday, August 4th, 2026 3PM - 10PM Donnelly Field York St. & Berkshire St., Cambridge, Ma 02141

Remind drivers to slow down by deploying live speed displays on Cambridge’s busiest streets.

Cambridge Arts is looking for people to help evaluate this year's cultural grant applications.

Are you interested in viewing planets and identifying constellations? Ever wanted to take apart a telescope to see how it works? Join the Cambridge STEAM Initiative and other partners at the annual Community Astronomy Night event to explore the night sky, guided by high school interns from the Center for Astrophysics | Harvard & Smithsonian Science Research Mentoring Program. Register by end of day on Thursday, March 5.

Join us to learn about the Cambridge Urban Forest Master Plan 5 Year Update.

Through the Main Street Safety Improvement Project, the City will add separated bike lanes to Main Street between Massachusetts Avenue and Portland Street, creating a more-comfortable bike connection between the Port and Central Square.

The Tobin Community School invites you to a Halloween Party and Magic Show.

1985 design principles and land use plans for the former industrial area of East Cambridge, covering the triangle from the First and Second Streets to the Charles River. Referenced in Zoning Ordinance, Articles 13.30, 13.40 and 13.50.

Map detailing the classification of streets with regards to the installation of LED streetlights

This form can be used to file a complaint against a Cambridge police officer.