I know that expanding streets is very difficult for city planners, and often they take advantage of small sections whenever they get the chance. You can see several s-curvy curbs on the West side of Los Angeles (which make parallel parking REALLY difficult) because they take the opportunity to expand the street whenever a whole building changes ownership. The idea is that eventually, every building will change ownership, and you can then expand the WHOLE street.

Wouldn't it make sense that this one block was under construction and the decided to put a bike-lane in using the same line of logic?