
Jackstown Aqueduct
Photograph circa 1870 of the aqueduct carrying the Pennsylvania Canal from the Juniata River's south bank to its north bank below Mapleton, PA. This is the entrance to Jack's Narrows of the Juniata River as the river flows through a gap in Jack's Mountain.
This photo shows the second aqueduct, made of iron and built
in 1865. It replaced the earlier wooden aqueduct, the piers of which are just visible slightly upstream from the piers of this build. The Jackstown aqueduct was destroyed in the "Johnstown" flood of 1889, and never replaced.