Sewer Pipeline & Manhole Rehabilitation

Active Work 

Scheduled and Locations of Work

Remaining Work- Remainder of Fall '24

• Crews will be returning to the streets where work took place earlier to complete remaining minor items. This work should last no longer than a few hours to one day in any particularly location and will not affect residents' sewer service.

Construction Impacts: 

• CIPP Lining Only - Affected residences are asked to limit their water usage during work hours on the date when work is taking place on the stretch where their home located 
  • affected residents will receive a secondary flyer with more information this request approximately 24 hour prior to work on their street
• On-street parking will be restricted during construction.
  • Please observe posted signage.
• Periodic road closures may be required.
  • Access will be maintained for pedestrians/residents  
• Trash/recycling pick-ups and deliveries will not be affected.

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

How It Works

Each year the City inspects a portion of our sewer and drainage system to identify areas in need of rehabilitation. While more critical issues are addressed via emergency repairs, regular rehab and maintenance typically takes place the following year through our Sewer Pipeline and Manhole Rehabilitation Program.

Pipelines and manholes are rehabilitated using a combination of methods, including but not limited to the following: 

• Injection Grouting – acrylic grout is pressure injected through a defect in the pipe, forming an impermeable barrier
• Cured In Place Pipe (CIPP) Lining – a flexible liner is inserted inside the existing pipe, inflated, and then hardened, forming a smooth surface inside the existing pipe
• Open Trench Excavation – crews will dig down to and expose existing pipe, remove the defective section or full length of pipe, and then install new pipe
• Spot Repair – similar to Open Trench Excavation, crews will dig a small trench, remove a short section of pipe, and install a new section of pipe
• Manhole Lining & Sealing – epoxy or cementitious material is applied to the inside of the manhole as a coating, restoring structural integrity and waterproofing the manhole

When excavation is required for construction, City contractors will pave the impacted area with a temporary course of asphalt immediately following the work. They will then return roughly a year later and perform final surface restoration.
 

Affected Streets 2024

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Schedule of Work