Another sewer separation project is coming to Defiance’s northside — this one west of North Clinton Street.
The project — like those before it — is mandated by Ohio EPA to eliminate combined sewers that can allow raw sewage to enter local rivers and streams during heavy rains or snow melts.
Although city council approved a contract with Vernon Nagel Inc., Napoleon, on July 2, the project won’t begin until September or October, according to Defiance City Engineer Melinda Warner.
She said a public hearing will be held for affected persons later, perhaps in mid-August.
The project cost is $1,775,127, while the estimate provided by the engineering firm (Burgess & Niple Inc.) that undertook the design work was $2,134,324.
Vernon Nagel is tasked with constructing new storm sewers on Ralston Avenue, between its eastern end west to Sessions Avenue; Pontiac Drive, from Ralston Avenue to where the public right-of-way ends; Elbert Street, between Ralston and Sessions avenues; Nicholas Street, between Ralston and Sessions avenues; Hilton Avenue, between Moss and North Clinton streets; and Carter Avenue, between Elbert and North Clinton streets.
The new storm sewers will be used for storm drainage, while the old combined sanitary/storm sewer will be kept and used as the sanitary sewer after the project is completed.
Additionally, new water lines will be installed on a section of Ralston Avenue, as well as Elbert and Nicholas streets, Warner noted.
The project will be topped off by resurfacing each of the impacted streets.
Storm/sanitary sewer work must be finished by year’s end, Warner explained, but it’s not likely until 2020 that the impacted streets will be resurfaced.
The contract price includes the repaving work, according to Warner.
Traffic will be maintained during construction, she indicated, but as none of the affected streets represent major thoroughfares, the project figures to have little impact on northside travel. (The project will not impact Ralston Avenue where it joins West Sessions Street — in the vicinity of Bell Street — and becomes a commercial and residential district.)
The project’s goal is to remove clean water connections from the city’s wastewater collection system, thereby reducing pressure on the system during heavy flow periods. But this will not require removing such things as downspouts, according to Warner, only catch basins and run-off which account for a larger volume of water.
Two other similar projects were completed on Defiance’s northside within the last couple years — on College Place, between North Clinton and Webster streets, and on East High Street, between North Clinton and East River Drive.
Those projects were more expensive and included other work such as sidewalks and landscaping.