A significant step to improving public health and sustainable economic development has started in North Windham, as a contractor has begun to install sewer lines there.
Cropley said the sewer line will span the Shaw’s parking lot through the Walmart lot, and over to Landing Road before crossing Route 302 to the Windham Mall. Shaw Brothers Construction also started installing another section of the sewer line April 20 along Route 115 in North Windham, he said.
“The installation will begin on the Gray side of Walgreens, progressing across Boody’s Corner and over to a section of Route 35, eventually connecting to the line being installed through the Shaw’s parking lot,” Cropley said. “That work will run through early May.”
According to Cropley, the sewer line work is scheduled to be performed at night in order to cause as little disruption for motorists as possible.
“Construction will start at 6 p.m. and go to 6 a.m. with start times varying depending on traffic volume,” he said. “Flaggers and police will be set up each night to control and redirect traffic when lane closures are in effect. The sewer work is scheduled to be completed by June.”
Voters approved installation of a sewer system in Windham during a special referendum in June 2022.
By installing a sewer system treating 50,000 gallons per day, Windham Town Manager Barry Tibbetts said that business growth in North Windham will be of significant benefit to the community, leading to economic growth and the creation of new housing, new hotels, new office and retail space and affordable options for small-scale manufacturing development.
Tibbetts said that environmental benefits will also be realized by installing sewers in North Windham including preventing 7,500 pounds per year of nitrogen and 1,000 pounds of phosphorous from entering the aquifer.
“This project will be the first of this magnitude in Maine and can be a model for other communities who lack receiving waters,” he said. “It will be the most advanced micro-filtration system in the state for handling contaminants.”
Along with the sewers, construction of a public wastewater system will result in the removal of about 100 septic systems that are currently discharging into the North Windham aquifer, Tibbetts said. A collection and pumping system over three miles in length will connect businesses and residents to the system and will treat wastewater through the advanced micro-filtration system.
“Current businesses will be able to further grow and expand while new businesses can be situated without further degrading the aquifer and using valuable real estate for septic systems,” Tibbetts said.
The overall estimated cost of the sewer project is $40.4 million. Partnering with the Portland Water District and RSU 14 to create the massive infrastructure project, the Windham Town Council covered the initiative through a combination of grant funding, a $38.9 million award by the Maine Department of Environmental Protection, and North Windham TIF funding supported by North Windham businesses.
Because of construction costs and materials increases since receiving voter approval in 2022, Tibbetts said that a warrant article approved by voters at the 2024 Windham Annual Town Meeting authorized the town to issue a bond of $4 million through the state’s Clean Water State Revolving Loan Fund. In doing that, the sewer project shortfall will have no impact for taxpayers.
The new system includes the creation of a new pumping station near Windham High School and RSU 14 that would service from the high school campus to a new treatment facility in North Windham and establish a wastewater treatment facility on the grounds of Manchester School and a new pumping station at Windham Middle School. <