Myrtle Avenue (Broadway) is the final station and transfer point before M train leaves the Broadway elevated to branch up and go up to what remains of the Myrtle Avenue elevated, the remains of which are very much alive in the station, ever since it was closed about forty years ago on October 4, 1969 (Forgotten New York has a good article on it). The currently opened station is the lower level Broadway elevated platforms, which are in the express station layout for a three-track line with two narrow island platforms, and the middle track (used by J/Z peak direction express service during weekdays and M Shuttle trains during nights and weekends). The station was rebuilt in 1999 (at least that's when the stained glass in the island's platform's windscreens date from) and has the modern green color design for an elevated station. Each platform has two staircases down to a passageway almost at their eastern (away from Manhattan) end, directly beneath the skeletal remains of the Myrtle Avenue elevated, this passageway fallows the el from beneath the tracks before going up again half a staircase to the small station house. The station house would have be easier to access from the Myrtle Avenue el than the Broadway el, with no passageways. From this small station house are two exits down to either side of Myrtle Avenue at the southern corners with Broadway (meaning passengers leave the station underneath the station, not approaching it).
The remains of the closed portion of the Myrtle Avenue el in the station is above with some maintenance houses now on the remains of it's island platform, some of whose wooden plank bottoms (what the platform was made out of to the day it closed), are still visible from street level. The skeletal remains of the el also for some reason extend a block southwest of the station above Myrtle Avenue to Lewis Avenue. The steel remains that held up the two trackways are still there, in addition to the remains of some signal boxes, and the posts that held up the standard fence along the el. North of the station the el continues a block north until the M's elevated curves off the mainline, at a flat-junction (meaning Myrtle-Avenue bound trains must cross the Middle track and Manhattan-bound mainline tracks), and curve around over private property before rising up to the Myrtle Avenue el at what must have been a flying junction. Another remaining feature that I noticed is the numbering system on all the pillars of the elevated, are numbered along Myrtle Avenue and begin in the 200s along the abandoned elevated south of the subway station and continue to increase as the M curves around to join the elevated. One must have been somewhere in downtown Brooklyn.
The station also has the dubious distiction to be the last to recieve electronic turnstiles to accept MetroCards, with the 50-year old mechanical ones being removed on May 14, 1997 
 Pierre-Pierre, Garry "Last Click for Token-Only Turnstiles," The New York Times, May 14, 1997. Online edition (accessed 2 January, 2010)
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