History nerds, rejoice. The Downtown Express has a neat little article on a recent finding in the Battery Park City landfill recently. Construction workers there uncovered a historic concrete bulkhead, which is actually on the State Register of Historic Places (this wasn't the first time a part of the wall has been exposed). It was put in place over 100 years ago when Civil War Gen. George McClellan launched the project "because silt and refuse was building up along the Hudson River shoreline and rotting piers, preventing ships from landing." Historic archeologist Joe Sopko allowed the workers to remove part of the slab, noting: “It’s just concrete." However, he points out it was one of the first examples of a large amount of concrete used in a construction project. [via Curbed]