Stop in for a cup of coffee

Well done with a quick coat of wax. Thought it was getting warm so came in and checked.
Its 73 degrees, with 67 dew point, and 81% humidity...no wonder I was working up a sweat!!
Quick!? Need to have you show how that's done!
How many levels of old streets are there?? Looks like a layer of bricks under the dirt??
Not sure but not a lot. The Baltimore Pike was built early 1800s but the alignment might have been a little bit upstream as appaerntly there was a bridge. I think we're seeing reinfocement to spread the loads under the track bed and street.
The big sewer should be further down. The storm drains along the streets have their own sewer. That might be the brick arch we see in the second photo. I remember the drawings for side street connections show a "egg shaped" cross section to the sewer - and its closer to the sidewalk. Making it narrower at the bottom keeps velocity up. Kindof cool someone thought about that.