Projects

In the coming years, we are going to add significantly to the city’s network of separated bike lanes. We will use this page to provide updates on our progress on an ongoing basis.

There are four categories of projects: MassAve4, The Rest of Mass Ave, Special4, and Other Locations.

MassAve4 - Mass Ave from Dudley St to Beech St; Roseland St to Waterhouse St; Garden St to Church St, in the northbound direction (this segment is Peabody St); and Dunster St to Plympton St.
The Rest of Mass Ave - All segments of Mass Ave, from Memorial Drive to Alewife Brook Parkway, that are not included in the MassAve4.
Special4 - Broadway from Quincy St to Hampshire St; Cambridge St from Oak Street to Second St; Hampshire St from Amory Street to Broadway; and Garden St, eastbound from Huron Ave to Berkeley St, and westbound from Mason St to Huron Ave.
Other Locations - Locations that are not included in the three previous categories, but have been designated for greater separation in the Bicycle Network Vision.

Typically, we must complete a separated bike lane before we can count it toward the requirements of the ordinance. Construction projects in The Rest of Mass Ave and Other Locations categories are exceptions; they count when construction begins.

Completed projects are grouped by “separated bike lane year." Years are tied to requirements in the Cycling Safety Ordinance.

More Information

The Separated Bike Lane Year

Many of the deadlines in the Ordinance are either “by May 1” or “by no later than May 1” of a certain year. To make it easier to understand how all the pieces fit together, we’re consistently referring to all these dates as April 30, including in cases where the formal deadline is May 1. This means that you can think of the “Separated Bike Lane Year” as beginning in May and ending in April, which will hopefully make the timeline simpler to follow.

Annual Reports

Each year, at the end of May, we must provide a report to the Cambridge City Council detailing the progress we’ve made during the previous year and what we plan to do in the current year. We’re also required to maintain information online about the location and length of the facilities that we’ve installed.

Click here for the First Annual Cycling Safety Ordinance Progress Report (Year 1: May 1, 2020 to April 30, 2021)
Click here for the Second Annual Cycling Safety Ordinance Progress Report (Year 2: May 1, 2021 to April 30, 2022)
Click here for the Third Annual Cycling Safety Ordinance Progress Report (Year 3: May 1, 2022 to April 30, 2023)
Click here for the Fourth Annual Cycling Safety Ordinance Progress Report (Year 4: May 1, 2023 to April 30, 2024)
Click here for the Fifth Annual Cycling Safety Ordinance Progress Report (Year 5: May 1, 2024 to April 30, 2025)
Click here for the Sixth Annual Cycling Safety Ordinance Progress Report (Year 6: May 1, 2025 to April 30, 2026)

Quick-Build vs Construction

The Ordinance distinguishes between quick-build methods and construction. Quick-build methods include pavement markings, flex-posts, signage, and signal changes. Construction involves more extensive changes, including potentially moving curbs and/or removing medians. Work becomes more complex anytime we dig into the ground, and construction projects may include work on the infrastructure (e.g., water, drainage and sewer pipes, traffic signal wires) that we have underground.

As a reminder, under the original Ordinance passed in 2019, we must construct separated bike lanes when streets in the “Greater Separation” category of the Bicycle Network Vision are reconstructed as a part of the City’s Five-Year Plan for Streets and Sidewalks.

Current Projects

Want emailed updates on any of these projects?

Designing

We are currently designing and looking for public input on several Cycling Safety Ordinance related projects. Please see the individual project pages for details.

Project Name	Street	From/To	Category	Project Type	Mileage*	Timeline (estimate)
Central Square Safety Improvement Project	Massachusetts Avenue	Inman St to Sidney St	Rest of Mass Ave	Quick-Build		Design/Engagement: Now Installation: 2027
Harvard Square Bus Stops	Massachusetts Avenue	Plympton Street to Garden Street	MassAve4	Construction	0.17 miles	Design/Engagement: Now Installation: Unknown
Massachusetts Avenue Partial Construction Project	Massachusetts Avenue	Waterhouse Street to Alewife Brook Parkway	MassAve4	Partial construction / Partial quick-build	3.88 miles	Design/Engagement: Now Installation:2027-2029
Cambridge Street Safety Improvement Project	Cambridge Street	Prospect Street to Second Street	Special 4	Partial construction / Partial quick-build	2.11 miles	Design/Engagement Began November 2023 Installation: 2027-2028
Huron Ave - Glacken Field to Grove St	Huron Avenue	Grove St to Fresh Pond Golf Course	Other Locations	Quick-Build	.51 miles	Design/Engagement: Now Installation: 2027

*New separated bike lane mileage

Under Construction

Project Name	Street	From/To	Category	Project Type	Mileage*	Timeline (estimate)
River Street Reconstruction Project	River Street	Memorial Drive to Massachusetts Avenue	Other Locations	Construction	0.68 miles	Design complete Construction: 2022 to 2026

Project Name

Street

From/To

Future Projects

Projects listed in this table are planned, but we haven't started the community engagement/design process.

Location/Street	Description	From/To	Category	Project Type	Mileage*	Timeline (estimate)
Steel Place	Separated bike lanes connecting the Minuteman Bike Path to Alewife Station on Steel Pl.	Cambridgepark Dr to Alewife Access Road	Other Locations	Quick-Build	.17 miles	2027
Mt Auburn St	We will install pedestrian and bicycle safety improvements on a section of Mt. Auburn St. with high speeds.	Coolidge Ave to Brattle St	Other Locations	Quick-Build	.19 miles	2027

Past Projects

Year 7 Projects (Currently Underway):

We completed or began construction on projects listed in this table in Year 7 between May 1, 2026 and April 30, 2027. See "Current Projects" above for more information on projects that have not been completed.

Category	Street	From/To	Direction(s)	Mileage	Status
Other Locations	Main St	Technology Square to Ames St	Both	miles	Underway
Other Locations	Quincy St	Technology Square to Ames St	Northbound	miles	Complete
Other Locations	Kirkland St	Quincy St to Oxford St	Both	miles	Complete
Special 4	Broadway	Columbia St to Quincy St	Both	miles	Complete

Year 6 Projects (Currently Underway): 3.58 miles

We completed or began construction on projects listed in this table in Year 6 between May 1, 2025 and April 30, 2026. See "Current Projects" above for more information on projects that have not been completed.

Click here to view the Sixth Annual Cycling Safety Ordinance Progress Report.

Category	Street	From/To	Direction(s)	Mileage	Status
Other Locations	Main St	Portland St to Sidney St Ext.	Both	.60 miles	Complete
Other Locations	Main St	Technology Square to Albany St	Both	.05 miles	Complete
Other Locations	Third St	Munroe St to Potter St	Both	.20 miles	Under Construction
Other Locations	Vassar St	Amherst Alley to Memorial Dr	Both	.40 miles	Complete
Other Locations	Waverly St	Henry St to Brookline St	Both	.16 miles	Complete
Other Locations	Broadway	Galileo Galilei Way to Third St	Both	.59 miles	Complete
Special 4	Broadway	Portland St to Columbia St	Both	.60 miles	Complete
Massachusetts Ave	Mass Ave.	Waterhouse St to Linnean St	Both	.98 miles	Under Construction

Year 5 Projects: 1.90 miles

We completed or began construction on projects listed in this table on or between May 1, 2024 and April 30, 2025.

Click here for the Fifth Annual Cycling Safety Ordinance Progress Report.

Category	Street	From/To	Direction(s)	Mileage	Status
Other Locations	Aberdeen Ave	Huron Ave to Mt. Auburn St	Both	0.51 miles	Completed in Year 6
Other Locations	Main St	Portland St to Albany St	Both	.16 miles	Complete
Other Locations	Main St	Ames St to Hayward St	Both	.31 miles	Complete
Other Locations	Cambridgepark Drive	Cul-De-Sac to Steel Pl	eastbound (westbound installed pre-ordinance)	.10 miles	Complete
Other Locations	River Street	Memorial Drive to Mass Avenue	eastbound	.68 miles	Under Construction
Other Locations	Western Ave	Mass Ave to Green St	southbound	.06 miles	Under Construction
Special 4	Cambridge St	Prospect St to Oak St	westbound	.08 miles	Complete

Year 4 Projects: 4.25 miles

We completed or began construction on projects listed in this table on or between May 1, 2023, and April 30, 3024.

Click here for the Fourth Annual Cycling Safety Ordinance Progress Report.

Category	Street	From/To	Direction(s)	Mileage	Status
Other Locations	Brattle Street	Sparks Street to Mt. Auburn Street (Phase 2)	Both	1.65 miles	Brattle Street Safety Improvement Project Phase 2 Complete
Other Locations	Cambridgepark Drive	Mid-150 Cambridge Park Dr to 50 Cambridge Park Dr	eastbound	.11 miles	Constructed as part of a private development project
Other Locations	Cambridge Street	Second St to O'Brien Highway	Both	.32 miles
Other Locations	Mt Auburn Street	Aberdeen Ave to Homer Ave	Both	.23 miles	The Mt. Auburn Street at Aberdeen Avenue Intersection Safety Improvement Project included a short section of separated bike lanes.
Other Locations	North First Street	Jacobs Street to Cambridge Street	Both	.30 miles	Divco West, the developer of Cambridge Crossing, is reconstructing part of O'Brien Highway and some nearby streets. This includes separated bike lanes on North First Street.
Other Locations	Third Street	Broad Canal Way to Broadway	southbound	.05 miles	Northbound lane installed in 2018. southbound quick-build lane added in Year 4.
	Special 4	Broadway	Portland Street to Hampshire Street	Both	.11 miles	This segment was part of the Hampshire Street Safety Improvement Project, completed in fall 2023.
		Special 4	Hampshire Street	208 Hampshire Street to Broadway	Both	1.45 miles	Hampshire Street Safety Improvement Project completed in fall 2023

Year 3 Projects: 3.67 miles

We completed or began construction on projects listed in this table on or between May 1, 2022, and April 30, 2023.

Click here for the Third Annual Cycling Safety Ordinance Progress Report.

Category	Street	From/To	Direction(s)	Mileage	Status
Rest of Mass Ave	Massachusetts Ave	Roseland Street to Beech Street	both	0.53 miles	Porter Square Safety Improvement Project Complete
	Massachusetts Ave	Memorial Drive to 77 Mass Ave (South Mass Ave)	northbound	0.12 miles	South Massachusetts Avenue Corridor Safety Improvements Project Complete
	Massachusetts Ave	33 Mass Ave to Memorial Drive (South Mass Ave)	northbound	0.03 miles	South Massachusetts Avenue Corridor Safety Improvements Project Complete
	Special 4	Cambridge Street	Oak Street to Prospect Street	eastbound	0.08 miles	Inman Square Intersection Improvements Project Complete
		Garden Street	Mason Street to Huron Avenue	both	1.17 miles	Garden Street Safety Improvement Project Complete
Other Locations		Brattle Street	Mason Street to Sparks Street (Phase 1)	both	0.65 miles	Brattle Street Safety Improvement Project Phase 1 Complete
Other Locations		Huron Avenue	Glacken Field to Fresh Pond Parkway	both	1.09 miles	Huron Avenue and Cushing Plaza Improvements Project construction started

Year 2 Projects: 2.15 miles

We completed or began construction on projects listed in this table on or between May 1, 2021, and April 30, 2022. The information in the “Status” column reflects the current status of the project.

Click here to read Second Annual Cycling Safety Ordinance Progress Report.

Category	Street	From/To	Direction(s)	Mileage	Status
Rest of Mass Ave	Massachusetts Ave	Church St to JFK St	southbound	0.08 miles	Capital project. Construction has begun on the Harvard Square Kiosk and Plaza Project.
	Massachusetts Ave	Dudley St to Alewife Brooke Parkway	both	0.91 miles	Mass Ave - Dudley Street to Alewife Brook Parkway Project Complete
	Massachusetts Ave	Cambridge St to Waterhouse St	northbound	0.06 miles	Complete
	Massachusetts Ave	Plympton St to Bow St	northbound	0.06 miles	Complete
	Massachusetts Ave	Trowbridge St to Pleasant St	both	0.92 miles	Mid-Mass Ave Safey Improvement Project Complete
Other Locations	Somerville Ave	White St to City Line	both	0.12 miles	Somerville Ave Separated Bike Lane Installation Complete

Year 1 Projects: 4.19 miles

We completed or began construction on projects listed in this table on or between May 1, 2020, and April 30, 2021. The information in the “Status” column reflects the current status of the project.

Click here to read the First Annual Cycling Safety Ordinance Progress Report

Category	Street	From/To	Direction(s)	Mileage	Status
Rest of Mass Ave	Massachusetts Ave	Garden St to Peabody St	southbound	0.08 miles	Complete
	Massachusetts Ave	Peabody St to JFK St	northbound	0.05 miles	Complete
	Massachusetts Ave and Peabody St	Church St to Dunster St	northbound	0.08 miles	Complete
Other Locations	Ames St	Main St to Memorial Dr	both	0.49 miles	Complete
	Binney St	Grand Junction Railroad to Galilei Way	both	0.15 miles	Under construction
	Cambridge St	Fayette St to Oak St	both	0.25 miles	Complete, Inman Square Project
	DeWolfe St	Mill St to Memorial Dr	both	0.13 miles	Complete
	Galilei Way and Binney St	Broadway to Sixth St	both	0.49 miles	Complete
	Hampshire St	City Line to 208 Hampshire St	both	0.28 miles	Complete, Inman Square Project
	Monsignor O'Brien Hwy	Third St to Land Blvd	both	0.79 miles	Complete
	Mt Auburn St	Eliot St to Holyoke St	eastbound	0.16 miles	Complete
	Mt Auburn St	52 Mt Auburn St to Plympton St	eastbound	0.02 miles	Complete
	Mt Auburn St	45 Mt Auburn St to Banks St	eastbound	0.11 miles	Complete
	Quincy St	Cambridge St to Broadway	both	0.10 miles	Quincy Street/DeWolfe Street Bike Path Complete
	Quincy St, Bow St, and DeWolfe St	Broadway to Mill St	northbound	0.41 miles	Quincy Street/DeWolfe Street Bike Path Complete
	Vassar St	Main St to 15 Vassar St	both	0.12 miles	Complete
	Webster Ave	City Line to Cambridge St	both	0.20 miles	Webster Ave Separated Bike Lane Installation Complete

Completed Before the Ordinance Took Effect

This table only provides details about street segments that are specifically called out in the Ordinance, this is not a comprehensive list of separated bike facilities in Cambridge.

Category	Street	From/To	Direction(s)
MassAve4	Massachusetts Ave	Everett St to Waterhouse St	northbound
Rest of Mass Ave	Massachusetts Ave	Waterhouse St to Cambridge St	southbound
	Massachusetts Ave	Cambridge St to Garden St	southbound
	Massachusetts Ave	Bow St to Trowbridge St	northbound
	Massachusetts Ave	Douglass St to Sidney St	northbound
	Massachusetts Ave	Sidney St to 125 Massachusetts Ave	both
	Massachusetts Ave	125 Massachusetts Ave to Amherst St	southbound
	Massachusetts Ave	Amherst St to 33 Massachusetts Ave	both
	Massachusetts Ave	33 Massachusetts Ave to Memorial Dr	southbound