Hopefully someone can tell me what font this is. We're wondering...

Sorry, I think Folio Bold Condensed is a closer match:
http://www.myfonts.com/fonts/ef/folio/ef-bold-condensed/testdrive.html?s=E+S+P+L+A+N+A+D+E+++D+R&p=48
Tough to whether the difference in the roundness of the top of the S is due to the angle of the photo, the reproduction quality of the lettering on the sign, or whether it's one of a dozen other bold condensed gothics.
It looks pretty damn close, but seems too bold?
http://www.myfonts.com/fonts/ef/folio/ef-bold-condensed/testdrive.html?s=ESPLANADE+DR&p=72
What do you think?
Here's my post if you're interested.
You may be right, Karen. Here's a quickie attempt to simulate the sign with Folio Bold Condensed.
I think the perspective and a little "squooshing" might account for the differences in weight, but the S and R are little rounder in your sample. And the middle stroke of the N is too light in Folio.
The S looks like it was borrowed from Franklin Gothic, Knockout or some other 19th-Century sans.
Another one that is close is Helvetica Inserat, although there are some small differences:

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