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Power line work to disrupt traffic on I-890 starting Friday

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— National Grid’s work to build a new 115-kilovolt transmission line between Rotterdam and Spier Falls in Saratoga County will interrupt traffic on Interstate 890 in the coming months.

Addressing a growing demand for electricity and improving service reliability are the goals of the project, which begins Friday. As part of the construction, traffic between Exit 1 and Exit 2 may be interrupted.

National Grid will be removing critical conductor and transmission towers over I-890 on weekends to limit traffic impact.

The project extends roughly 33 miles and will run side-by-side with an existing high-voltage line running from the hydroelectric dam in Moreau.

The line is expected to cost around $66 million and has been under discussion since 2007. The state Public Service Commission approved the construction in February.

National Grid officials said they will work with town, city and county officials, local public works and highway departments and emergency and public safety personnel to provide accurate alerts regarding construction and changes in traffic patterns.

The project is estimated to be completed in February.

Opponents of the project wanted to see the line buried, but National Grid determined the overhead route next to the existing power line had the least environmental impact.

The company has indicated the new line is necessary to prevent thermal overloads that could damage existing lines and lead to power blackouts.



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