The Department of Sanitary Sewer Services is currently working with a consulting engineer on the design to replace the sanitary sewer in the Stow Gorge. Cast iron pipe was installed in 1966 at the upper end of the Stow Gorge, near the intersection of State Routes 59 and 91, parallel to the sanitary sewer constructed in 1923. The steep slope of the pipes has caused high velocities and damage to the downstream pipes and manholes located in the gorge. Severe erosion has also caused exposure of the existing sanitary sewers.

Phase 1 will replace the steep runs of sanitary sewer down the north side of the Stow Gorge with a new sanitary sewer and manholes, designed to decrease the flow rate and eliminate the potential to damage the manholes in the gorge.

Construction on Phase 1, replacing the sewers entering the Stow Gorge, is planned for Fall of 2020. Phase 2 of the project will be to replace the exposed sewer and lateral connections within the gorge.