SUGGESTION:
Since the Walnut Bridge roadway is a very wide, one-direction (outbound from downtown, i.e. evening rush hour = heaviest vehicle traffic) will the Streets Dept PLEASE move snow off both sidewalks and let the snow narrow the roadway width by one single 12-ft wide lane.
NB: city should not plow this sidewalk snow into a curbside lane at 1) corners, 2) other logical ped crossings, 3) bus stops.
Another suggestion: plow sidewalk+roadway snow into one of the CENTER-MOST of the (4) traffic lanes. This will allow 1) curbside metered parking, 2) will not block in-out of parking garages, 3) will facilitate bus stopping, 4) both left & right turns will be easier since they won't have to navigate around curbside plowed snow piles.

PLEASE CONSIDER THIS!!! TEST IT on the next big snow, please.