What is the acreage of the laboratory located near the former railroad junction of the Patterson Creek Cutoff and the main B&O line?
McKenzie, Maryland McKenzie is an unincorporated community in Allegany County, Maryland, containing only a few houses, and mostly land. Its name is derived from a family which owned a large farm along the river bottom in the area. It is directly across from the Allegany Ballistics Laboratory in Rocket Center, West Virginia. The area used to be a railroad junction of the Patterson Creek Cutoff and the main B&O line. McKenzie is also the site of one of the first settlements in Allegany county, where many pieces of glass, metal, stone, and some coin have been found. In the fields of the river bottom, arrowheads and flint can be found, suggesting a possible Native American community at one time, similar to the Barton, Maryland site.
B&amp;O Railroad Bridge The B&O Railroad Bridge (also called CSXT's Schuylkill River Bridge) is a 1910 swing bridge across the Schuylkill River from Bartram's Garden on the west bank to the east bank Grays Ferry neighborhood of Philadelphia, Pennsylvania. It carries CSX Philadelphia Subdivision rail lines over the river, and sits upstream from the Passyunk Avenue Bridge and downstream from the Grays Ferry Bridge.