Main Street Reconstruction Project

Includes Ames St to Wadsworth St

Winter 2015

Crews have suspended construction activities at the Third St Connector for the winter season.  There will be periodic utility work throughout the winter with major construction resuming in the spring.


November 17, 2014

Crews will continue to finish the water work on Main St.  The bypass is expected to be removed next week.


November 10, 2014

The City's contractor, Newport Construction, will continue to reconnect the water main and administer tests to ensure that the water main upgrade has no issues.


October 20, 2014

Crews continue to work on the water main. This week, crews will be pressure testing and will also continue reassembling the water main.


October 6, 2014

Crews continue to install new conduit at the Third Street Connector.  A second crew will TV and clean the water main this week.


September 22, 2014

This week, crews continue to work on the conduit at the Third Street Connector. Additional crews will be performing work on the 12" water main.


August 25, 2014

This week crews are performing utility work at the Third Street connector. The connector will be closed during this phase of the project.


August 18, 2014

Crews are currently performing work at the corner of Ames Street and Main Street. Beginning Thursday, August 21, the Third Street connector will be closed. On Thursday, August 21, there is a scheduled water shutdown in the area from 8pm-2am. All affected properties will be notified 72 hours in advance. If you have any questions regarding the water service shutdown, please contact the Cambridge Water Department at 617-349-4770.




Construction is anticipated to begin in the summer 2014 and is being coordinated with various projects in the area.  Crews will first remove the median strip on Main St.  Once that is complete, they will begin construction of the Third St connector, which will take several months to complete.  Following the work at Main and Third Sts, crews will construct the Main St connector near the Wadsworth intersection, which will also take about 2 months to complete (spring 2015.

Crews will break for the winter and resume construction activities in the spring of 2015.  Next year's schedule will include sidewalk reconstruction, roadway reconstruction, tree plantings, street lighting, and new street furniture.

We expect construction to take about 18 months to complete. 



Project Background 

Through the Kendall Square Planning Study (K2C2 ), a plan of improvements for Main Street (Ames to Wadsworth) has been developed. The plan will provide a high quality experience for pedestrians and cyclists with reconstructed sidewalks and roadway, enhance transit accommodations, provide a new connection from Third St to Main St, and include seating, bus shelters and bike parking, including artist designed bike racks. 

Please also check the K2C2 website for more information on this project.


For more information on the Main Street project, please contact Kathy Watkins at /617.349.4751 or Kelly Dunn at /617.349.4870. The Department of Public Works TTY line is 617.349.4805.


For more information about the K2C2 study, please contact Iram Farooq at /617.349.4606. The Community Development Department TTY line is 617.349.4621.

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Dept of Public Works

147 Hampshire St
Cambridge MA 02139


Hours of Service

Monday: 8:30am-8:00pm
Tuesday-Thursday: 8:30am-5:00pm
Friday: 8:30am-12 noon
24 Hour emergency 617.349.4860


Tuesday & Thursday: 4:00pm-7:30pm
Saturday: 9:00am-4:00pm

Owen O'Riordan