It’s possible that we’re not seeing the whole picture because this underpass is also in scope of the McGrath grounding... if that ever happens.In my opinion, they completely missed the opportunity to widen this underpass so the lanes dont squeeze from 2 to 1 and back to 2 again on the other side.
Got it! Makes sense now. The sidewalk will be quite wide, that's great!Those secondary abutments are temporary. See Street View here for an earlier pic of the construction staging when west half of the bridge was new and east half was old. And then here from the other side in slightly earlier view from when the old bridge was chopped in half but the west-half new span had yet had to have its permanent abutments poured.
The new-pour concrete conjoined to the old stone blocks appears to be some sort of construction staging platform, as you can see from the first Street View it was ramped-up with rock ballast that's now mostly been scooped away. Those, along with the now-disused old stone abutments from the west half of the old bridge, should be removed pretty soon. Resulting undergrade width will then be about 1/3 wider than the old span and 2 ft. taller.
Oh, that's a good point. So they build up the berm, install the pilings and then dig away the berm and the existing slope. Clever. I assume the pilings do an OK job holding back the soil before the concrete panels are installed.Also they need a level platform to sit on. Most of the drilled shafts on the southwest side of the corridor are getting installed through what is an existing slope. Imagine a right triangle - and trying to drill straight down while you're perched on its hypotenuse at a 45 degree angle.
As they excavate away the berm they also install temporary lagging (appears to be welded wire and shotcrete) between the piles on the way down to track grade, then the permanent precast panels are installed later.Oh, that's a good point. So they build up the berm, install the pilings and then dig away the berm and the existing slope. Clever. I assume the pilings do an OK job holding back the soil before the concrete panels are installed.
next time i think i see you i'm just gonna yell "javier!" and see if the photographer turns around. for reference (and so as not to scare you), i'd be the skinhead walking the min-pin and holding a thermos of "coffee" -- usually around the HS/city hall/winter hill area, but sometimes union, ball, magoun, or inman square (or, more rarely, central).
Lechmere Station salvage signage should be appearing on the T gifts website later in the year. They always make that stuff available because people will kill each other for the collectibles. Would imagine Science Park is also going to get completely re-signed during the shutdown for consistency with the "brightening" program's latest-gen wayfinding graphics going up elsewhere on the system, so watch for souvenirs from that stop to show up online in-tandem with Old Lechmere.I've never been so excited about being totally inconvenienced by the T closing a station...
Green Line service between Lechmere Station and North Station is being replaced with shuttle buses every day beginning Sunday. The change will last for about one year, the MBTA said.www.wcvb.com
I honestly think that the red-blue connector is a real possibility in the next ten or so years. Might be pushed back a bit because of how much corona has decreased revenue coming in.As much as we complain about no red-blue, blue-lynn...etc, rightfully so, this is still a huge deal that the green line is getting a major grade separated expansion like this. These dont come around every day. Im very excited to see if this can spur some of those other projects once people see how successful this is because people havent seen a new transit line like this in decades. Cant wait to see this succeed massively.