Who knows if it will ever happen, but MBTA planners are currently reviewing replies from several train makers to a T request for information on what it would take to begin converting the current diesel-powered commuter-rail trains to trains powered by overhead electric wires. Read more.

Nathaniel Stinnett watched some of the demolition of the steel part of the Lechmere viaduct this morning. It's coming down for the realignment of the Green Line towards the new Not-Lechmere station being built as part of the fabled Green Line Extension.

Transit Police report two out-of-town visitors, one 17, the other 19, who came into Boston for "a day of leisure" on Monday had a fun day with a group of strangers they met on the Common - until the group led them into the Park Street T stop. Read more.

Tim Murphy took some before and after photos of Lechmere, specifically, what it looked like just before it was shut and then again over this past weekend: Read more.

The MBTA reports Orange Line delays of about 20 minutes due to a train with a no doubt embarrassing mechanical problem inbound at Jackson Square.

Tonight marks the last time the T will use the current Lechmere station for anything trolley related. It shuts tonight and in 11 months or so, there'll be a brand-new station nearby as the current tracks are extended towards Somerville.

Of course, what comes down must have gone up. Read more.

Transit Police report arresting a Jamaica Plain man on charges he took out a knife on the Orange Line and threatened another rider with it around 3:40 p.m. on Saturday near Tufts Medical Center.

Demond Perry, 44, was arrested yesterday at the Chinatown station on a charge of assault with a dangerous weapon, police say.

Innocent, etc.

A Suffolk County grand jury - meeting only with strict adherence to social distancing - this week indicted a Transit Police officer for sexually attacking two women, allegedly as "payment" for giving them a ride around downtown in his cruiser in July, 2012, the Suffolk County District Attorney's office reports. Read more.

Workers at the Boston Transportation Department have begun inventorying city-owned traffic cones and barrels as they ready for a coronavirus-related effort to claim parts of some city roads for expanded sidewalks to allow for greater social distancing among pedestrians - including patrons at restaurants that would be forced to reduce their indoor seating once the governor gives them the OK to re-open their dining areas - a BTD official told city councilors today. Read more.