One of Forest Hills Platforms to Close Through December

From Sept. 3, 2016 through December, only one of Forest Hills' two platforms will be in use.

Chris Helms

From Sept. 3, 2016 through December, only one of Forest Hills’ two platforms will be in use.

UPDATE: The T explains that it has a plan so that during rush hour it can keep to the regular Orange Line schedule.

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Fellow Orange Line riders, get ready for some additional chaos in your favorite subway line. The T will be shutting down one of the two platforms at Forest Hills soon as part of the Casey Arborway Project.

Here’s the laconic announcement posted by the T:

All train service will board on the southbound platform at Forest Hills beginning Saturday, Sept. 3, and continuing through December 2016, due to the Casey Overpass Project.

It isn’t entirely clear how much having one platform at the end of the line might muddle Orange Line timetables. Here’s what one informed observer of all things MBTA expects:

We’ve reached out to the T and State Department of Transportation (which is in charge of the Casey Arborway project) for further details.