Update June 7, 2011: CDOT and Mayor Emanuel acknowledge the project with a Tuesday morning press conference. Here’s the press release (that doesn’t reveal anything we don’t already know) and photos from the event. NBC Chicago has video from the press conference (2:27).
A bike box is a well-marked area where bicyclists can queue at signalized intersections ahead of cars, a way to get ahead and make bicyclists more visible to drivers. The Chicago Department of Transportation (CDOT) installed one Tuesday morning, on Day 2 of the Kinzie Street protected bike lane project (read about Day 1). I asked a CDOT worker if it will be painted green or another color and they replied it would probably would. It appears that the design for the project is still being done while construction proceeds. I expect a section of the next block will be worked on tomorrow.
More new information about this project
CDOT was also grinding out pavement markings on Kinzie Street in front of Jewel-Osco, where the CDOT worker explained a left-turn lane would be created for westbound travelers (matching the left-turn lane in the eastbound direction next to the bike box).
The uphill bike lane will not be protected. Chicagoist commenter BlueFairline pointed out a conflict with trucks delivering goods via hose to the Blommer chocolate factory. The truck needs to be curbside. Today confirmed how this would work out.
Lastly, the CDOT worker could not confirm if there will be a bike-only left-turn lane on southbound Milwaukee at Kinzie Street, as I suggested earlier.