Roving UHub photographer Will Bussiere was roving all the way out in Charlton yesterday when he spotted a Green Line trolley on the back of a flatbed on the turnpike. No clue why.

Earlier:

A day after we learned the alleged final cost of the Big Dig, the Supreme Judicial Court ruled the way the then turnpike authority shifted toll revenues to Big Dig construction costs was perfectly legal.

A bunch of turnpike commuters had challenged the money shifting, arguing it amounted to an unconstitutional tax, because they were paying for a new road system they might not use.

Plans probably don't include restoring Charlesgate to its early 20th-century state.

State officials hold a meeting tonight to discuss options for the turnpike through the Back Bay and the Bowker Overpass - the decaying hulk that now speeds cars across the fetid remains of the Muddy River between Fenway and Storrow Drive.

At the session, which begins at 6 p.m. in the mezzanine conference room at the BPL in Copley Square, state transportation officials will discuss various options for improving the Back Bay for people encased in metal shells, including extending the overpass to the turnpike for people heading to the airport or just tearing it down altogether and replacing it with a simple surface road. Another possibility is a new offramp to Brookline Avenue.

State officials recently announced plans to tear down the equally decrepit Casey Overpass in Jamaica Plain and replace it with surface roads and parkland.

• Massachusetts Turnpike Boston Ramps Study

Sometimes life gets a little frenetic around here, as Photographynatalia (above, by the Pru) and misssalimoo (by Kenmore Square) show:

Around 11:40 a.m., Jim Lokay posted a photo of the backed up traffic on the turnpike westbound between Framingham and 495.

Around the same time, Dave reported a major jam on 128 north by Rte. 20 in Waltham caused by a multi-vehicle crash that closed three lanes. Sarah Nelson reported a similar situation involving another multi-car crash on 495 south between exits 26 and 27.

Smoke from turnpike truck fire billows over West Newton. Photo by JJ Free.

A rollover on the turnpike eastbound in Newton around 1 p.m. shut the road and sent two to the emergency room, state Transportation Secretary Jeff Mullan reports.

Among those sitting with no place to go until the scene was cleared was Sean William, who tweets he was stuck for 90 minutes in the car with his fashion-impaired mother:

I wasn't sure how much longer I could sit in the car with my UGG wearing mother before saying something!