Spring Hill Sewer Separation Project

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Largely developed during the 19th century, Spring Hill is served by a combined sewer system that collects both wastewater and stormwater runoff in the same pipes. The City is currently working to upgrade these systems by installing new storm drains that separate stormwater from the existing combined sewer. This measure is one in a series of actions the City is undertaking to reduce water pollution, mitigate flooding, and ultimately modernize our infrastructure.

In addition to the installation of a modern, separate sewer system, the project includes:

Largely developed during the 19th century, Spring Hill is served by a combined sewer system that collects both wastewater and stormwater runoff in the same pipes. The City is currently working to upgrade these systems by installing new storm drains that separate stormwater from the existing combined sewer. This measure is one in a series of actions the City is undertaking to reduce water pollution, mitigate flooding, and ultimately modernize our infrastructure.

In addition to the installation of a modern, separate sewer system, the project includes:

The Spring Hill Sewer Separation project has been divided into two areas: Project Area 1 and Project Area 2, as illustrated on the limits of map on the right-hand side of this page (click image to enlarge). Construction has begun in Project Area 1 while Project Area 2 will advance to construction in 2023 at the earliest.

Select from the list below to view planned improvements and the anticipated schedule for each street within Project Area

  • Summer Street (School St. to Spring St.) Reconstruction

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    Starting the week of June 12 (weather permitting), City contractors will begin the reconstruction of Summer St. between Spring St. and School St.

    Initial work will include milling of the roadway (removal of the top layers of pavement). Subsequently, repaving with an initial binder course of asphalt will take place over the following weeks, additional notification will be provided ahead of paving.

    This next phase of work will facilitate the installation of new streetscape improvements (including new sidewalks and green infrastructure) over the coming months. Final paving will take place later this year.

    Construction impacts:

    • On-street parking will be restricted during construction. Please observe posted signage.
    • Periodic road closure during milling and paving.
      • Access will be maintained for residents.
    • Access to your driveway may be temporarily restricted.
      • Onsite crews are available to help you get in and out of your driveway as needed.
    • Trash/recycling pick-ups and deliveries will not be affected.

    We apologize for any inconvenience this may cause and thank you for your patience as we work to upgrade utilities and install streetscape improvements throughout the Spring Hill neighborhood.

    If you have questions, please email construction@somervillema.gov or call the Engineering Division at (617) 625-6600 ext. 5400 with questions.

  • School St. Underground Utility Work Begins - Week of 5/22

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    Update 6/5: Westwood Rd - Bypass installation and subsequent utility work has been postponed. An additional update and notification will be provided once we have a new date.

    School St. (Highland Ave. to Summer St.) Utility Improvements Begin

    Beginning on Monday, May 22 or soon after, City contractors will start underground utility improvements on School St.

    To facilitate this work, School St. between Highland Ave. and Summer St. will be closed to through traffic during work hours (7 a.m. to 4 p.m. on weekdays). Please observe detour signage.

    • Access will be maintained for residents.
    • Parking restrictions will be in place during construction.
    • Sidewalks will remain open for pedestrians.
    • Some sidewalk access may be restricted at times. However, temporary sidewalks will be installed to maintain accessibility.

    Other Ongoing Work in Spring Hill

    Avon St. - Following paving on Avon St., crews will begin work on streetscape improvements, including new sidewalk and green infrastructure installations.

    Oxford St. - Following paving of the eastern half of Oxford St. (Trull Ln. to School St.), underground utility work will continue on the western half of the street (Trull Ln. to Central St.).

    Gibbens St. - Crews will be installing a new water main and drainage lines over the coming weeks.

    Westwood Rd. - After the Memorial Day holiday, crews will be installing temporary water bypass on Westwood Rd. to ensure that residents continue to receive service during utility work. Residents will receive additional notification ahead of bypass installation.

    Summer St. - Crews are expect to begin reconstruction and streetscape improvements on Summer St. (School St. to Spring St.) in early to mid-June.

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    If you have questions, please email construction@somervillema.gov or call the Engineering Division at 617-625-6600 ext. 5400.

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    A comprehensive look at our full spring/summer schedule was presented at our most recent construction community meeting available here.

  • Oxford St. (Trull Ln. to School St.) Paving - 5/19

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    Weather permitting, this upcoming Friday, May 19th, City contractors will repave the eastern half of Oxford St. between Trull Ln. and School St. as part of the Spring Hill Sewer Separation Project.

    Anticipated Schedule (subject to change):

    Work hours are weekdays between approximately 7 a.m. and 5 p.m.

    Construction Impacts:

    • On-street parking will be restricted during paving. Please observe posted signage.
    • Road will be closed during paving.
      • Access will be maintained for residents.
    • Access to your driveway may be temporarily restricted.
      • Onsite crews are available to help you get in and out of your driveway as needed.
    • Trash/recycling pick-ups and deliveries will not be affected.

    This is a preliminary binder course of paving following subsurface utility improvements. Final street reconstruction is scheduled to take place Spring 2024.

    Please email construction@somervillema.gov or call the Engineering Division at (617) 625-6600 ext. 5400 with questions

  • Avon St. Paving, Week of 5/15

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    Weather permitting, as early as next Monday, May 15th, City contractors will begin the reconstruction of Avon St. as part of the Spring Hill Sewer Separation Project.

    Construction Impacts:

    • On-street parking will be restricted during construction. Please observe posted signage.
    • Periodic road closure during milling and paving.
      • Access will be maintained for residents.
    • Access to your driveway may be temporarily restricted.
      • Onsite crews are available to help you get in and out of your driveway as needed.
    • Trash/recycling pick-ups and deliveries will not be affected.

    Planned Work and Anticipated Schedule (subject to change):

    Work hours are weekdays between approximately 7 a.m. and 5 p.m.

    Week of 5/15

    • Milling the roadway (removal of current top layers of asphalt), then raising cast iron structures in the street.
    • Paving an initial binder course of asphalt.
      • Initial paving enables contractors to begin setting new curbing and installing new sidewalks

    Remainder of Spring/Summer

    • Installation of new streetscape improvements
      • New sidewalks and green infrastructure (bioretention basin and irrigated planting area)
    • Final curb-to-curb paving
      • Separate notification will be sent ahead of final paving

    Please email construction@somervillema.gov or call the Engineering Division at (617) 625-6600 ext. 5400 with questions.

    Thank you

  • Temporary Water Main Bypass Installation - April '23 (Oxford, Hershey, Gibbens, School)

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    City contractors will be connecting residents on the below streets to temporary water main bypass to ensure the continuation of water service during ongoing utility work.

    Streets Requiring Temp Water Main Bypass

    • Oxford St.
    • Hershey St.
    • Gibbens St.
    • School St.

    To install this temporary bypass, City contractors P. Gioioso & Sons Inc. personnel may request brief access to your property. The temporary water bypass is typically connected to buildings/residences via a blue rubber hose attached to an exterior spigot.

    Learn more about being connected to water service via a temporary bypass here.

    If you have questions, please email construction@somervillema.gov or call the Engineering Division at 617-625-6600 ext. 5400.

  • April 10 - Spring Community Meeting

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    April 2023 Community Meeting

    Monday, April 10, at 6:00 p.m.

    Join us for a virtual community meeting on the Spring Hill Sewer Separation project. Topics to be covered include:

    • Review of progress made this winter
    • In-depth look ahead to the upcoming spring/summer construction season
    • Review of streetscape improvements and green infrastructure coming to Summer St.
    • Neighborhood feedback and Q&A session with City staff

    Register here



    Individuals with disabilities who need auxiliary aids and services for effective communication, written materials in alternative formats, or reasonable modifications in policies and procedures, in order to access the programs and activities of the City or to attend meetings, should contact the City’s ADA Coordinator, Adrienne Pomeroy, at 617-625-6600 ext. 2059 or apomeroy@somervillema.gov(External link).

    La interpretación al portugués, español, haitiano criollo, nepalí, mandarín, cantonés u otros idiomas puede estar disponible previa solicitud comunicándose con la Oficina de Asuntos de Inmigrantes de SomerViva en somerviva@somervillema.gov o llamando al 311.

    Interpretação em português, espanhol, crioulo haitiano, nepalês, mandarin, cantonês, ou outras línguas podem estar disponíveis mediante solicitação prévia entrando em contato com o SomerViva - escritório para assuntos de imigrantes - em somerviva@somervillema.gov ou ligando para 311.

    Pou entèpretasyon nan lang Pòtigè, Espanyòl, Kreyòl Ayisyen, Nepali, Mandaren, Kantonèz, oswa lòt lang ka disponib si ou fè demand lan lè w kontakte Biwo pou Zafè Imigran (SomerViva) nan somerviva@somervillema.gov oswa rele 311.

    पो र्चुगि ज, स्पेनि श, हेसि यन क्रि यो ल, नेपा ली , मन्डा रि न, क्या न्टो नि ज, वा अन्य भा षा हरूमा अनुवा दका ला गी समरभि भाः अफि स अफ इमि ग्रेन्ट अफेयर्सको इमेल Somerviva@somervillema.gov मा र्फत वा ३११ मा फो न गरेर अग्रि म अनुरो ध गरेमा भा षा हनुवा द सेवा उपलब्ध हुन सक्छ।

    任何人士如需葡萄牙语、西班牙语、海地克里奥尔语、尼泊尔语、普通 话、粤语或其他语言的口译服务,请发送电邮至somerviva@somervillema.gov 联系移⺠事务办事处,或提前致电 311申请 口译服务。

    任何人士如需葡萄牙語、西班牙語、海地克里奧爾語、尼泊爾語、國語、粵語或其他語言的口譯服務,請發送電郵至 somerviva@somervillema.gov 聯繫移⺠事務辦事處,或提前致電 311申請口譯服務。

  • February 24 - Project Update

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    The Spring Hill Sewer Separation project has continued to progress through the winter.

    Highland Ave. + Highland Ave./Central St. Intersection Progress and Remaining Work

    Highland Ave. water main and services

    City contractors are nearing completion on the installation of the new water main along Highland Ave. (School St. to Central St.). One crew will remain on this section of Highland Ave. to complete installation of new water services (connections between new water main and buildings) over the coming weeks.

    Highland Ave./Central St. intersection work

    Crews are continuing to work on water and drainage utilities in the intersection of Highland Ave. and Central St. This work is currently scheduled to continue for ~3 weeks, weather dependent.

    *The above work will require the westbound Highland Ave. and Highland Ave/Central St. intersection detours to remain in place for at least 3 additional weeks.

    Utility Work to Begin on School St., Westwood Rd.,Oxford St., and Gibbens St.

    Starting the week of 3/6 or soon after, construction crews will begin to prepare for further subsurface utility improvements, beginning on Oxford Street.

    Crews will also begin work on School St., Westwood Rd., and Gibbens St. as early as mid- to late-March.

    This work is expected to continue through the spring into the summer season. Construction schedules are subject to change, and as such, the City will continue to provide updates to the community should the order of work differ than listed above.

    View our latest community presentation for a description of subsurface utility improvements planned on each street.

    Next Community Meeting (Spring ‘23)

    Stay tuned for information about our next community meeting to be held this spring.

    During this meeting, we’ll cover what to expect during the next few months and review upcoming streetscape improvements.

  • February 18th - Highland Ave. Saturday Work and Water Service Interruption (Select Addresses)

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    Weather permitting, City contractors will be working this upcoming Saturday (2/18) morning between 7 a.m. and 4 p.m. to perform necessary water utility work. This work will require the Highland Ave. (School St. to Central St.) Westbound Traffic Detour to remain in place throughout the day. In addition to traffic impacts, this work may cause periods of elevated noise levels.

    Water Service Interruption (149, 151, and 153 Highland Ave)

    Water service may be interrupted Saturday, February 18, between approximately 7 a.m. and 4 p.m. to facilitate water utility work at the below addresses:

    • 149, 151, and 153 Highland Ave

    Once the water is back on, you may experience a short period of water discoloration. Though the water may be discolored, it is safe to drink. Until the water runs clear, it is advised to avoid washing laundry, especially white fabrics. If any rust stains appear on wet laundry, the clothes should not be dried, and you can call 311 (or 617-666-3311 from cell phones or outside the city) for a free bottle of rust remover.

    Thank you for your continued patience during construction. If you have questions, please email construction@somervillema.gov or call the Engineering Division at 617-625-6600 ext. 5400.

  • February 2nd - Highland Ave. Evening Work and Water Service Interruption

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    Weather permitting, City contractors will be working this upcoming Thursday (2/2) evening between 6 p.m. and 2 a.m. to perform necessary water utility work. This work will require the Highland Ave. (School St. to Central St.) Westbound Traffic Detour to remain in place throughout the evening. In addition to traffic impacts, this work may cause periods of elevated noise levels.

    Water Service Interruption

    Water service may be interrupted Thursday, February 2, between approximately 6 p.m. and 2 a.m. to facilitate water utility work at the below addresses:

    • 97-147 Highland Ave (excluding #135)

    Once the water is back on, you may experience a short period of water discoloration. Though the water may be discolored, it is safe to drink. Until the water runs clear, it is advised to avoid washing laundry, especially white fabrics. If any rust stains appear on wet laundry, the clothes should not be dried, and you can call 311 (or 617-666-3311 from cell phones or outside the city) for a free bottle of rust remover.

    This night work is expected to take one day after which construction crews will return to normal working hours (7 a.m. to 7 p.m.).

    Thank you for your continued patience during construction. If you have questions, please email construction@somervillema.gov or call the Engineering Division at 617-625-6600 ext. 5400.

  • Highland Ave./Central St. Intersection Work

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    Beginning on or around January 3, City contractors will begin working on subsurface utility improvements in the intersection of Highland Ave. and Central St.

    While work in the intersection is underway, access to Highland Ave. from Central St. will be restricted (details below).

    Eastbound traffic will continue to be able to proceed through the intersection and along Highland Ave. Westbound traffic will continue to be detoured (see previous update).

    Highland Ave./Central St. Intersection (South Side Partial Closure)

    While construction in the south side of the intersection is underway, there will be no access to Highland Ave. via Central St. northbound during work hours (weekdays between 7 a.m. and 7 p.m.)

    Central St. will remain accessible for residents only. All other traffic will be detoured via Summer St. and Lowell St.

    Highland Ave./Central St. Intersection (North Side Partial Closure)

    While construction in the north side of the intersection is underway, there will be no access to Highland Ave. via Central St. south bound during work hours (weekdays between 7 a.m. and 7 p.m.)

    Central St. will remain accessible for residents only. All other traffic will be detoured via Medford St. and School St.


Page last updated: 18 Jun 2024, 09:49 AM