The DailyCamera beat me to the story, last week the Boulder Transportation dept released their update on Update on Transportation Metrics. The short of this large memo is that bike parking is in high demand in downtown Boulder. This is one of those good problems to have so now it's off to the drawing board on how to accommodate the cyclist biking to downtown Boulder. These problems are not new for may bike friendly area, some communities have started to create Bike Corrals.
Bike Corrals take bike parking off of the sidewalk and puts them in the street just as a car would park but where 1 car goes many bikes can be parked. This solution is also good on streets that have narrow sidewalks or high bike traffic making it difficult to park multiple bikes in one section, classic example would be the area around the Laughing Goat on east Pearl street.
More information on Update on Transportation Metrics
Find the entire document on Boulder's website
Here is a snippet of the executive summary
The number of bicycles counted in the downtown area increased by 14 percent between 2008 and 2009, and 46 percent between 2007 and 2009.
The most popular areas for parking bicycles have not changed substantially between 2007 and 2009. One noticeable change is a significantly higher concentration of bicycles parked at the Farmers Market (both Wednesday and Saturday).
The areas where additional bicycle parking is needed are similar to the previous findings. The Farmers Market continues to have a high unmet demand for bicycle parking. Supply is also not meeting demand in the areas immediately west and east of the Pearl Street Mall.
Both the 2008 and 2009 counts also showed an increased amount of bicycles parked in the alleyways north and south of Pearl Street. It is possible that there has been an increase in the number of employees commuting by bicycle to the area. Although it appears that some businesses have provided racks, additional bicycle parking is needed in the alleyways.