A plan for the multi- million-dollar Intervale Road drainage system project was presented Monday to the Board of Selectmen.

The project -- which will affect people on Chester, Devon, Intervale, Stanley and Abbey roads; Holmes Court; Holmes Avenue; and Rose and Park lanes -- is intended to alleviate drainage issues near the Noroton River, which borders Stamford.

The project is an outgrowth of the 2010 Noroton Watershed Study, which examined drainage problems in the Abbey and Intervale roads area, according to Bob Steeger, director of public works.

The drainage outlet will be behind Park Lane, and will discharge into the Noroton River.

Pipelines will be expanded along the affected areas.

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Steeger said he needs to obtain several permanent or temporary construction easements from the affected homeowners.

He told the selectmen that the project's estimated completion date is May 1, 2014.

A total of $1.85 million was previously approved for the project, $500,000 for the construction administration and inspection, and $1.35 million for the physical project, according to Steeger. Steeger told the selectmen that this is the largest drainage project that he has seen in town in 26 years.

"It's a big project," Steeger said. "It will be disruptive. I think by this time, we have a pretty good reputation for minimizing the disruption in the area as much as possible and be responsive to the concerns of individuals while the construction proceeds."

Selectman David Bayne asked if this project would remediate the drainage issues.

"I am reluctant to use the word totally remediate," Steeger said. "It will remediate. History has shown us that even the most ambitious and extensive flood mitigation projects or drainage projects fail in terms of carrying capacity."

Steeger added that no matter what is done, there could be days with flooding, though it will be less likely after the project.

"It will be better than in the past," Steeger said.

On Wednesday, the Environmental Protection Commission conducted a public hearing on the Department of Public Works' proposal to replace a storm drain with a box culvert at 95 Rose Lane.

mspicer@bcnnew.com; 203-330-6583;@Meg_DarienNews