Eyeballing a bunch of non-fog games it seems that something that's been nagging at me from the beginning has become manifest. The antique base map showed those two little forts north of Wall Street and they look pretty cool. (Other maps show six!) But clearly, based on location and shape, they are meant to be part of the defensive wall protecting against attack from the north. (The Dutch feared the English, rightly as it turned out.) What to do with these outward-facing cannon? Erase and forget about them? Or give them some purpose and value? I chose the latter and said they could bombard the fort. But I realized from the start that they'd rarely be used for that and so their real value would simply be to build up one's tert count. I kept them, if you will, as gimmicks.
Ditto for the maritime connection. The map had a harbor and I couldn't erase it but didn't want it to be irrelevant so I created the connection to a mild-mannered tert on the Hudson River. Has it ever been used in any of the 300+ games that have been played? Surely not often, if at all. I didn't expect it would be. This is just another gimmick. (I had considered including some naval warfare but chucked that idea when the "mean streets" concept occurred to me and seemed intriguing.)
So you have these two somewhat irrelevant features on the map. You might want to consider tweaking things so they become more involved in play. For instance, holding both Batteries could mean a bonus. That would give The Fort more reasons to bombard them (and thus vice-versa).
Holding The Harbor and 2 B'Way B would mean having a chokehold on incoming shipments of food and ammo and whatnot. A small note to that effect and a nice bonus for holding both??
It's in your hands. These are just suggestions. But this is the point in time in game development when tweaks like these are possible and worth considering.

Historical note: just four years after this game's base map was made the substantial wall for which the street is named was demolished because the city had expanded well beyond it.