Okay, interesting. With that Google Places I end up at, apparently, the wrong place.
I see, looking at it on GMM I finally understand. You are referring to this feature:
Unfortunately, the closest access, at least as far as GMaps routing can tell, seems to be the Interstate instead of this point:
In other words, geographically, the Interstate is the closest point to the "Genesee Rowing Club."
Hopefully someone more knowledgeable than me will chime in...
But here are the options as I understand them.
1. Go to Google Maps, find the feature, and use the "Report a Problem" link to report the issue.
2. Try to correct the issue through edits in GMM. Remove the duplicate Address Marker (POI) that is further from Hawthorne Drive. Noting that even though the map tile is still showing the "loop" that those roads have actually been deleted (there seems to be an error), so it's probably best to have it close to the actual live road.
I honestly don't know which solution is best because #2 would be fairly immediate (it takes a few days for directions to update, to see if it has worked, in my experience), it may also not work at all. #1, though leaves you just wondering if and when someone will get around to fixing it (and hoping they understand your report).
In my opinion -- the best option is to delete the duplicate/badly-formatted address POI and adding the ZIP code to the other address marker. Hopefully that will at least get the Address routing correct and then you can tinker with the Rowing Club marker to get it to route properly if it still isn't.
Someone lurking in the forums might have better advice though :)
Jet