The Pedestrianist today reminds us all that the temporary closure of 184 feet of Mason Street begins tomorrow, August 1, 2009. (And, as ususal, The Streetsblog can always get you up to speed on streets issues right quick.)
Check it. Can you see that tiny stretch of Mason between Lombard and Columbus? Imagine people lounging about (in the middle of the damn street!) for the next eight weeks or so.
Click to expand:

Here’s the mise-en-scene:

See the upper left corner? That little triangle is your possible future library location, pending NIMBY approval:

So if you ever experience congestion in North Beach or Chinatown or Fisherman’s Wharf, be sure to blame it on this tiny temporary plaza.
Will it be a “traffic nightmare“? The people at Save Mason Street think so.
Brace yourselves…