“It is literally impossible to walk a straight line down the block without running into a sign or pole, or falling into a cellar”

“Dear PoPville,

Was hoping some readers might know what to do about the obstacle course of a sidewalk on 9th Street NW, across from the Convention Center (particularly between L and P). It is literally impossible to walk a straight line down the block without running into a sign or pole, or falling into a cellar. It’s baffled me for a while, but it was only last night, when seeing a man in a wheelchair seriously struggle to wheel himself around the myriad obstacles (one example pictured below) that I realized it wasn’t just absurd, but actually immoral. There are six lanes of traffic on ninth, which the sidewalk could certainly extend out to. Does anyone know if this sidewalk runs afoul of any city zoning or accessibility ordinances? Whom would one contact to do something about this?”