If you are of the nerdy planner, engineer, or history buff variety, you may have already started speculating about what would be found when University Avenue is torn up. As we know, parts of this street have been paved in all kinds of things, from eight-inch diameter tree trunks, to 30-pound granite pavers. The early results are in at Emerald Street.
A whole lotta concrete.
Concrete and...is that sandstone?
And if you look close - red brick pavers under than thin layer of dirt on the far side.