Council OKs borrowing to help resolve grout issue
KINGSTON >> The city will borrow $150,000 to pay for the design of a project to remove grout that is blocking the Washington Avenue sanitary sewer system, as well as to fund ongoing rental fees for a pump system to temporarily bypass the clogged section of pipe.
The Common Council voted 8-0 Tuesday to borrow the money and authorize the design work for the repair project. The resolutions were adopted without comment from council members.
Majority Leader William Carey, D-Ward 5, was absent.
Of the funding, $100,000 would pay for designing the repair project, which would use a high-pressure water jet with a rotary cutting tool to remove the grout blocking the sewer system. It also would pay to solicit bids from companies that could perform the repair project, which is expected to cost more than $1 million.
The remaining $50,000 would be used to pay for the bypass pumping system.
The grout blockage occurred during the project to repair the sinkhole that opened on Washington Avenue in April 2011. During the repair, grout somehow penetrated a new sewer lining, blocking a portion of the pipe.
Timothy Moot, a principal with the firm Clark Patterson Lee, told the council’s Finance and Audit Committee last month that the high-pressure jet repair was one of several options his firm explored. He said the repair is estimated to cost between $1.1 million and $1.3 million.
The city previously tried to jet the grout out of the pipe but did so from a greater distance than now is being proposed, Moot said. He said the closer the equipment is to the blockage, the more pressure can be generated.
City Engineer Ralph Swenson told the Finance and Audit Committee that it costs the city about $7,250 per month to rent the bypass pump. He said money the council previously approved for the rental is nearly exhausted but the new funding would cover the cost for the next several months.