Engineering Construction Projects

Road Construction, Closures, and DetoursWhile every effort is made to keep this website up to date, changes occur dynamically and website updates cannot keep up with moment to moment conditions. This applies to detours which are set daily in the field by Town personnel in conjunction with the Lexington Police Department.

Projects Under Construction

Non-Town of Lexington Projects

The Mass. Water Resources Authority (MWRA) is working on Lowell Street at Summer Street, and there is a partial road closure/truck detour. 

The Town of Burlington is actively working on their water main job on Lowell Street from the Burlington town line to Maple Street and currently working in several areas. Crews are between North St and East St. While work is taking place in this section traffic will be detoured down Adams St to Emerson Rd to East St. Crews are also actively in the intersection of Lowell St And Maple St. The roads are open but intersection is temporarily reconfigured as a roundabout. Crews are currently digging in the section near Laconia St. When the road is closed, the detour set up will route southbound traffic down Laconia and back up to Lowell St. Northbound traffic remains on Lowell St. Expect delays in this area and seek alternate routes.  Residents affected by water service disruptions will receive notification directly from the Town of Burlington. Any questions should be directed to the Town of Burlington or their Resident Engineers.  

MWRA will be actively working Lowell Street from Maple Street to Sanderson Rd. Detours will be set directing traffic away from the area of active work. When the work is exclusively in the Bryant Rd to Maple St stretch, Lowell St will be closed and vehicles will be detoured Maple Street to Emerson Gardens Road to Bryant Road. If the work zone is expanded to Sanderson, there will be a one lane closure and one way traffic will be maintained allowing northwest traffic to remain on Lowell St. Southeast bound traffic will be detoured down Maple Street to Emerson Gardens Rd to Sanderson Road. One or both of these detours are expected to be put in place beginning October 5th and be active for several weeks.

Typical hours are Monday through Friday from 7 AM until 5 PM. There will be detours set up in the field as the work progresses.

See the bottom of the page for other important Non-Town related construction information including road closures related to those projects.

Town of Lexington Projects

  • 2022 Paving Program (Updated October 5, 2022):
    • Traditional Paving ContractSchedule for Phase 3 is set. See below. Updates will be posted if changes are made to the schedule.

**Top Course for Mass Ave at Pelham Rd is rescheduled for Thursday October 6th** Mass Ave will be open for eastbound traffic but a detour is set up for westbound traffic traveling along Mass Ave routing vehicles down Marrett Rd-Waltham St. Expect delays as there is ongoing construction in the center. Seek alternate routes and exercise caution.  

Roads are typically closed to through traffic during the paving operations. Final paving requires a full closure to all.  Anyone who needs access during the day should plan to park offsite.  If it rains the work is postponed to the next dry weekday. 

  • Road Surfacing Contract:   All surfacing work is complete! Only punch list items remain and will be complete by the end of September. See below for the list of roads in the traditional paving contract (roads that have the base removed and then repaved) as well as roads in the surfacing contract (topped with treatment but not excavated) Any questions about the paving program should be directed to the paving hotline: 781 274-8905 or

2022 Paving/Surfacing Map

2022 Surfacing List

2022 Paving List

Paving and Surfacing Technique Descriptions

  • Lincoln Street Sidewalk Project (Updated September 23, 2022) The contractor for the Lincoln Street Sidewalk Project, Allied Paving, is currently working on Lincoln St from Marrett Rd to Middle St. Beginning the week of 9/26, Lincoln St will be closed in this stretch to all but direct abutters, buses and others requiring access directly to this section of road. This closure will be in effect for 4-6 weeks. Typical hours are 7am-5pm weekdays. Please see detour mapProject is an installation of an asphalt sidewalk on Lincoln Street from Marrett Rd to Middle St. Work includes drainage improvements, addition of wheelchair ramps and a RRFB for pedestrian crossing on Marrett Rd. (Rectangular Rapid-flashing Beacon)
  • 2022 Sewer Cleaning and Lining Contract (Updated August 18, 2022) Lexington Phase 8 Sewer System Improvements. Work includes cleaning and video inspection of sewer mains as well as manhole rehabilitation and spot sewer repair/relays. Any questions or concerns can be directed to the email of Marissa Liggiero.
    • Phase 8 Construction is complete except for the following dig repairs: Marrett Road at Tufts Road, 433 Marrett Road and Bloomfield Street sewer lateral repair 
  • Valleyfield, Grassland, and Waltham Streets Drainage Improvements Project (Updated March 29, 2022) The project includes storm drain improvements, culvert replacement, and related work on Valleyfield Street, Grassland Street, and Waltham Street near Brookside Avenue. Any questions can be directed to the email of Marissa Liggiero.
  • Pelham Road Reconstruction (Updated June 16, 2022) Once more work is scheduled, information will be posted here.
  • Oxbow Road and Constitution Road Drainage Improvements Phase 1 (Updated September 20, 2021 ) Kiln Brook Culvert Daylighting Project includes drainage improvements in front of 27/29 Constitution road and includes daylight an existing outfall, installing a culvert, roadway infrastructure improvements and wetland improvements.
    Construction is currently underway. The project includes daylighting an existing drainage outfall, installing a culvert and vegetated wall, roadway infrastructure improvements and wetland modifications. There are currently minor traffic implications and no road closures or detours, however residents are encouraged to seek alternate routes around the work area if possible, and to follow directions by detail officers. Towards the end of October, work will include construction in the roadway and a road closure or limited travel is expected. Work is scheduled to be completed before the end of this construction season.
    If you have any questions please email Matt Weisman or email Ross Morrow.
  • Intersection Improvements: Mass. Avenue at Worthen Road (Updated October 4, 2022) Project is in the final stages!!  The intersection will be paved on Thursday, October 6th. While no full road closure is expected, traffic will be impacted as there will be lane closures for this work and possible rolling detours set in the field. Seek alternate routes and expect delays. This project entails roadway pavement reconstruction, sidewalk and wheelchair ramps, improved traffic operations and safety, improved pedestrian access and safety, signs and pavement markings. If you have any questions please contact Ross Morrow.

Projects by Other Entities Affecting Lexington

  • MWRA/Town of Burlington Water main projects will begin April 11, 2022 along Lowell St from the North Ave to Summer Street.  This is two different contracts. This work is expected to continue right through the season to November.  Please seek alternate routes and expect delays. Find out details of these projects
  • National Grid has several Gas main relay projects in Town this year including on Bedford Street, Carley Road, and Eldred Street.  Expect delays and possible closures. Schedules and detour maps will be posted and sent out through Twitter if made available. 

Follow Lexington DPW / Engineering Twitter.