Street sweeping in Somerville.
The odd side is swept on the 1st and 3rd of its weekday each month and the even side on the 2nd and 4th, 8 AM to noon, as the signs say; main streets and squares are also swept at night.
The rules, in plain words.
How does street sweeping work in Somerville?
The odd side is swept on the 1st and 3rd of its weekday each month and the even side on the 2nd and 4th, 8 AM to noon, as the signs say; main streets and squares are also swept at night.
When does it apply?
April 1 to December 31. $50 ticket, and the car can be towed. No sweeping on City holidays.
What does a ticket cost?
A ticket is $50, and the car can be towed. The City's page ↗
Can CURB remind me?
Yes. Tap your curb on the map, then Sweep alerts: a push the evening before and 30 minutes before it starts, on Somerville time, or put it in your calendar. An overnight sweep gets one alert around 9 PM the evening before. On iPhone, add the map to your Home Screen first.
Is CURB free?
Yes. Free, with no account and no ads, and open source on GitHub. CURB started in San Francisco; the Somerville map is built on the City's open data.
The City's holidays.
Street sweeping stops on these holidays, and CURB's colors and alerts skip them.
| Holiday | Date |
|---|---|
| New Year's Day | Thursday, January 1, 2026 |
| Martin Luther King Jr. Day | Monday, January 19, 2026 |
| Presidents' Day | Monday, February 16, 2026 |
| Patriots' Day | Monday, April 20, 2026 |
| Memorial Day | Monday, May 25, 2026 |
| Juneteenth | Friday, June 19, 2026 |
| Independence Day | Saturday, July 4, 2026 |
| Labor Day | Monday, September 7, 2026 |
| Indigenous Peoples' Day | Monday, October 12, 2026 |
| Veterans Day | Wednesday, November 11, 2026 |
| Thanksgiving | Thursday, November 26, 2026 |
| Christmas Day | Friday, December 25, 2026 |
| New Year's Day | Friday, January 1, 2027 |
| Martin Luther King Jr. Day | Monday, January 18, 2027 |
| Presidents' Day | Monday, February 15, 2027 |
| Patriots' Day | Monday, April 19, 2027 |
| Memorial Day | Monday, May 31, 2027 |
| Juneteenth | Saturday, June 19, 2027 |
| Independence Day | Sunday, July 4, 2027 |
| Labor Day | Monday, September 6, 2027 |
| Indigenous Peoples' Day | Monday, October 11, 2027 |
| Veterans Day | Thursday, November 11, 2027 |
| Thanksgiving | Thursday, November 25, 2027 |
| Christmas Day | Saturday, December 25, 2027 |
From the City's list: Somerville Department of Public Works ↗
Where the data comes from
Schedules come from the City's street sweeping pages, one per street side or stretch, placed on MassGIS street centerlines; the odd side of each block comes from MassGIS address points. The day sweeps match the City's 2025 sweeping contract, and the City's reminder tool at 13 addresses. The posted sign always wins: temporary signs and holidays override everything here.
Open the source ↗License: City of Somerville public web pages (no license stated) · fetched Oct 18, 2026
Open the source ↗License: MassGIS (Commonwealth of Massachusetts), public data · fetched Oct 18, 2026
Open the source ↗License: MassGIS (Commonwealth of Massachusetts), public data · fetched Oct 18, 2026
The City's own page on it: Somerville Department of Public Works ↗
Maps © OpenStreetMap contributors, © Protomaps.