MBTA building sandbag barricade in front of Green Line tunnel

Due to the rising levels of the Muddy River, the MBTA is building a barricade of sand bags in front of the Green Line tunnel portal just east of Fenway Station, an MBTA official said Tuesday night.

Green Line service is suspended between Kenmore and Fenway Stations in both directions. Buses are providing replacement service until further notice.

Tuesday has been a rough day for the Green Line.

Earlier, around 8:35 a.m., aquarter of a four-paneled Green Linen trolley door came loose as it traveled near Park Street Station.

No injuries were reported.

A Green Line inspector is facing disciplinary action for failing to ensure that the trolley door was secured in the closed position before the train proceeded to Park St., according to according to MBTA Spokesman Joe Pesaturo.

“Because of his failure to follow established procedures, a segment of the door dislodged after making contact with a part of the subway infrastructure,” Pesaturo said.

The trolley was about to come out of service at Park Station due to earlier mechanical problems. It was impounded, and a full investigation is underway.

The 27-year old trolley is among the 86 Green Line trolleys that will be rebuilt over the next two years, Pesaturo said.