Overnight, August 9 – 10, 15th Street north of South Street was milled in preparation for resurfacing.  The old asphalt will be recycled.  Milling reveals a palimpsest of the street’s former surfaces:  a patchwork of old concrete, abandoned trolley tracks, Belgian block.  The historic layers see daylight for a few days or weeks, only to be entombed again.

Update Wednesday August 24: 

Last night a new layer of curb-to-curb bituminous macadam sealed the historic (if fragmented) street surface. The new pavement is a definite plus for center city’s thousands of bicyclists.