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City reviews ways to improve sanitary sewer lines

by Laura Freeman | Reporter Published: February 19, 2014 12:00 AM

Hudson -- The city would like to keep the sanitary sewers dirty and keep the inflow and infiltration (I&I) of clean water out. Council members reviewed several projects to prevent the I&I of storm water into the sanitary sewer system Feb. 11. They could vote on the resolutions Feb. 19.

One of the proposed projects is for labor and materials for the 2014 sanitary sewer lining project along Hartford Drive, West Streetsboro Street, Sunset Drive, Clairhaven Road, Aurora Road and the trunk sewer under the Norfolk Southern Railroad Tracks off Morse Road.

The lining cost $40 per foot but the lining last 100 years, said City Engineer Thom Sheridan. It costs $200 per foot to replace a sewer line. The city lines approximately 4,000 linear feet per year (1 square foot = 2.1 linear feet), he added. About 29,000 feet has been replaced since 2005.

"We do the worst first," Sheridan said.

The city's equipment can televise the pipes and locate cracks and breaks, he said. The lining allows the city to eliminate sporadic laterals in clay pipe that don't go anywhere. The lining also prevents infiltration of clean water into the sanitary sewer system.

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Sheridan said a model for metering flow was started last week. It will meter and test 20 locations in the Hudson sanitary sewer system and compare flow for inflow and infiltration. He will make a presentation on the findings in September. The model could locate problem areas in the system, which the city would concentrate on fixing.

A second resolution that could be considered would be for the Division Street sanitary sewer and waterline improvement project for the repair, replacement, extension and lining of the sanitary sewer mainline and laterals within the right-of-way, replacement of the existing water main and service lines with the right-of-way, the necessary storm sewer improvements and roadway repairs from College Street to North Oviatt Street.

Sheridan said the city is "whittling" away at the problems in the city's sewer system but laterals or sewer pipes on private property are a concern, and he will make a presentation in the future for ways to enforce homeowners to correct problems.

The final proposed project is for the 2014 manhole rehabilitation program of 26 sanitary sewer manholes on Boston Mills Road, South Main Street, Cohasset Drive, Williamsburg Circle and the sanitary sewer trunk line north of the Turnpike.

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