The next route William Barclay Parsons, Chief Engineer of the Rapid Transit Commission laid out while the IRT was being constructed was one that would weave through northern Manhattan, run down 9th Avenue, then veer west right up against the waterfront along West Street. Like the First Avenue Subway (Route #1), the Rapid Transit Commission and Public Service Commission did not consider it a priority (most likely because of the existing 9th Avenue elevated) and kept the plans on the back burner. The IND however would give life to certain stretches of it. Read more after the jump.