Entirely replaced north no underground Haymarket Square Station by the northern portion of the Orange Line. We will look at the Main-Line Forest Hills -Everett line from North Station north to Everett, with a side view of the Main Steet Bridge over the Charles, a stop at Tomkins square - side-view from street level, many Sullivan Square pictures, and a look at Everett.














The Charlestown Elevated actually started south of North Station. at the portal north of Haymaket. Left-ti-right of the six tracks:
Elevated to Sullixan Squre and Everett
Elevatesubway d to Washing Sreet Tunnel and Forest Hills
Trolley-Subway to Lechemere Viaduct
Trolley-Subway to North-Station surface loop and surface Bunker Hill Street and Main Street streetcar lines to Sullivan Square
Reverse of above
From Lechemere Viaduct to Subway

Found I photo Iād taken of the portal with a train headed for Everett and 2 PCCs from Lechmere:

Here, we are on an Everett-bound train just after leaving Sullican Square Station, and we are seeing the rear of a Forest-Hills-bound train and the ramp to the surface used by the Elm Street Fellsway streetcars and in the past also by the Eastern Mass. cars dfor Stoneham:

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Here is the Fairwell trip to the elevated at the opposite end (southern end) of the line at Forest Hills:
Looking south from Forest Hills Station:
No major changes in rail operations 1945-1946 according to the Boston Street Railway Association book by Bradley Clark, Streertcars of the Hub.
However, streetcar routes that were bus lines on weekends and mid-day, but were full-time streetcar lines durinhg WWII, returned to pre-WWII operation; and delivery of additional PCC cars allowed PCCs to served additional lines (some weekend and mid-day only), and retirement of a some Center-Entrance, Type4, and ex-Eastern Massachusetts streetcars, the latter from EM to BEwhen the CHelsie Division was transferred before WWII.