SACO — The installation of an key piece of the Eastern Trail will close Route 1 overnight later this month.

A bridge will be put in place across Route 1 just north of Ross Road to connect two portions of the off-road trail. Starting at 6 p.m. Thursday, Oct. 27, Route 1 will be closed from Ross Road to Spring Hill Road for the work. Drivers can use both Spring Hill and Ross roads to navigate around the closure.

Route 1 will reopen around 6 a.m. Friday, Oct. 28.

This is the second bridge for the trail spanning a major highway. In August, a bridge over Maine Turnpike was opened just north of the Kennebunk exit, completing a 6.2-mile section of trail.

The Eastern Trail’s goal is to connect Kittery with South Portland through a network of mostly off-road trails. The route follows along the historic Eastern Railroad. For more information, visit

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