Town of Dennis Wastewater Project

In an effort to keep Dennis residents informed and up to date, the Town of Dennis will update this News and Announcements post as soon as new information comes in. 

• The Wastewater page includes information on licensed septic haulers, licensed utility installers, the Comprehensive Wastewater Management Plan, and more.

• To get the latest information emailed to you, enter your info here.

• See time-lapse pictures of site progress here.

UPDATE MARCH 19, 2026

RJV Construction Corp. started work in late June for Contract No. 4. Robert B. Our Co., Inc. started work for Contract No. 2 in early July. Dig It Construction LLC started work for Contract No. 3 in mid- July. Work is currently scheduled as outlined below.

 Work for the week of March 23 – March 27:

Contract No. 2:

• Continued sewer work on Main Street from Cape Cod Rail Trail, toward Old Bass River Road. Continued deep sewer work on Route 134 from intersection of Theophilus F. Smith Road, north toward Main Street and continued shallow sewer work on Route 134 north, just south of Theophilus F. Smith Road – ROUTE 134 DEEP SEWER WORK WILL BE NIGHT WORK WITH ROAD CLOSURE AND DAY-TIME SHALLOW SEWER WORK AND PAVING WILL HAVE SINGLE LANES BOTH SOUTH BOUND AND NORTH BOUND. Police detail(s) will be on-site and signage in place to assist residents. Some road closures with local traffic only, detours will be in place.

 Contract No. 3:                                                        

• Completion of sewer work on Route 134 between Route 28 and Center Street. Local traffic only, detour will be in place. Police detail(s) will be on-site and signage in place to assist residents.

 Contract No. 4:

• Continued sewer work on Route 28 from Alburmar Road to Riverway. Continued sewer work on Woodbine Drive. Continued sewer work on Main Street between Cove Road and Highbank Road. Continued sewer work on Route 28 and side streets from School Street to Church Street. Local traffic only, detours will be in place. Police detail(s) will be on-site and signage in place to assist residents.

Two Week Look Ahead (3/30 – 4/3):

Contract No. 2:

• Continued sewer work on Main Street from Cape Cod Rail Trail, toward Old Bass River Road. Continued deep sewer work on Route 134 from intersection of Theophilus F. Smith Road, north toward Main Street and continued shallow sewer work on Route 134 north, near intersection of Theophilus F. Smith Road – ROUTE 134 DEEP SEWER WORK WILL BE NIGHT WORK WITH ROAD CLOSURE AND DAY-TIME SHALLOW SEWER WORK AND PAVING WILL HAVE SINGLE LANES BOTH SOUTH BOUND AND NORTH BOUND. Police detail(s) will be on-site and signage in place to assist residents. Some road closures with local traffic only, detours will be in place.

 Contract No. 3:          

• Commencement of sewer work in Route 134/Route 28 intersection and along Route 28 toward Baxter Street. Local traffic only, detour will be in place. Police detail(s) will be on-site and signage in place to assist residents.

 Contract No. 4:

• Continued sewer work on Route 28 from Alburmar Road to Riverway. Continued sewer work on Woodbine Drive. Continued sewer work on Main Street between Cove Road and Highbank Road. Completion of sewer work on Route 28 and side streets from School Street to Church Street. One day of work in Route 28, 200 feet east of Old Main Street intersection. Local traffic only, detours will be in place. Police detail(s) will be on-site and signage in place to assist residents.

Three Week Look Ahead (4/6 – 4/10):

Contract No. 2:

• Continued sewer work on Main Street from Cape Cod Rail Trail, toward Old Bass River Road. Continued deep sewer work on Route 134 from intersection of Theophilus F. Smith Road, north toward Main Street and continued shallow sewer work on Route 134 north, near and then down, Theophilus F. Smith Road – ROUTE 134 DEEP SEWER WORK WILL BE NIGHT WORK WITH ROAD CLOSURE AND DAY-TIME SHALLOW SEWER WORK AND PAVING WILL HAVE SINGLE LANES BOTH SOUTH BOUND AND NORTH BOUND. Police detail(s) will be on-site and signage in place to assist residents. Some road closures with local traffic only, detours will be in place.

 Contract No. 3:          

• Continued sewer work in Route 28 from Route 134 intersection toward Baxter Street. Local traffic only, detour will be in place. Police detail(s) will be on-site and signage in place to assist residents.

 Contract No. 4:

• Continued sewer work on Route 28 from Riverway to School Street. Continued sewer work on Lighthouse Road. Continued sewer work on Woodbine Drive. Completion of sewer work on Kelly’s Way. Completion of sewer work on Route 28 near Allain Way. Local traffic only, detours will be in place. Police detail(s) will be on-site and signage in place to assist residents.

• Please note that this is a projected schedule and will be adjusted accordingly based on the Contractors’ actual progress and the weather. 
• Roads will be passable at the end of each day. Police Details and Contractors will work with residents and businesses to ensure their needs for access are addressed.
• Police Details and signage will be in-place to assist motorists in reaching their destination.
• Normal work hours are 7:00 AM to 4:00 PM Monday to Friday, weather permitting, unless otherwise noted such as upcoming overnight construction activities on Route 134 (East-West Dennis Road) February through March.

Wastewater Project Updates are being posted to the Town’s website at http://www.town.dennis.ma.us under “NEWS & ANNOUNCEMENTS” where you can also sign up for email notifications of updates. We encourage you to visit the Wastewater page link https://www.town.dennis.ma.us/356/Wastewater for additional information regarding the Wastewater Program.

 Thank you for your patience and cooperation during this important project to restore and protect our environment.

Click map to see the interactive Webmap and find your lateral locations.

   Progress at the Wastewater Plant Site November 20, 2025

The Town of Dennis would like to inform you of upcoming overnight construction activities on Route 134 (East-West Dennis Road) associated with ongoing sewer improvements.

As part of this work, Route 134 will be fully closed between Main Street and Theophilus F. Smith Road, including the area in front of Patriots Square, beginning on February 2, 2026 and is expected to continue through March 27, 2026. All construction activities and associated traffic control will occur overnight between the hours of 7:00 PM and 5:00 AM, from Sunday evening until Friday morning. Route 134 will be reopened to traffic during daytime hours.

During the overnight work period, the Route 6 Exit 78A (old Exit 9A) off-ramps, both eastbound and westbound, will be temporarily closed in order to prevent traffic from being directed into the active work zone. Signed detour routes will be in place during these hours. General traffic will be directed to use Bob Crowell Road, Old Bass River Road, Main Street, and Upper County Road. A designated overnight truck route will also be provided, directing trucks to use Airline Road, Old Chatham Road, Depot Street, Great Western Road, and Upper County Road. The map below illustrates the aforementioned overnight detour routes.

Local access to residences and businesses will be maintained to the greatest extent possible throughout construction. The Town of Dennis understands that this work may be inconvenient and appreciates the patience and cooperation of residents, business owners, and the traveling public as these important infrastructure improvements are completed.

If you have any questions or concerns, please feel free to contact me at mlavin@town.dennis.ma.us or (508)760-6620.