The city of Portland, Oregon, has reached the impressive milestone of 100 bike corrals. That's 9 years after the first one was installed, and the city expects to reach 150 within 5 years and has 98 additional applications under review. As far as I know, that's a lot more than any other city in the US, though I hope that others will give Portland some competition.
Why are bike corrals so great? Because in a dense urban environment, the are very space-efficient; where 1 or 2 cars could park, dozens of bikes might fit. The Portland Bureau of Transportation (PBOT) said that their bike corral program "has helped Portland businesses increase on-street customer parking ten-fold." That's 163 car parking spaces swapped for 1,644 bicycle parking spaces!
They also allow cyclists to park right in front of where they're going to eat or shop, making cycling more convenient. And in their own way, they're great marketing for bikes. People see these big clumps of bikes and get used to the idea that cycling is something normal.
Check out this great short-film by Streetfilms:
The full list of bike corral locations in Portland is available here, or on the interactive map below.