This small marker sits next to the Swatara Creek and the canal where a modern bridge crosses with SR 230, just east of Middletown and the Harrisburg International Airport. The marker reads, "This canal was operated from 1828-1884. It connected the Susquehanna at Middletown with the Schuylkill at Reading, following the Swatara and Tulpehocken Creeks. Much coal and iron ore were transported. Course of canal was just west of old mill race."
According to the Wikipedia article, "...the initial design called for the construction of a canal from the Susquehanna to the Delaware, the 1825 opening of the rival Schuylkill Navigation from Reading to Philadelphia prompted the Union Canal Company to focus solely on the Middletown-Reading portion of the canal, which when connected would complete the longer conveyance west to the Susquehanna."
"The canal was completed in 1828 under the direction of Canvass White, the preeminent canal engineer of the day. Upon its completion it was 8-1/2 ft (2.6 m) wide and had 93 locks. In 1832 a 22-mile (35 km) branch canal was constructed northward from the water works along the Swatara Creek to Pine Grove. The branch canal served as feeder for the summit level as well as allowing the transport of anthracite from the mountains, which became the principal revenue source for the canal operation."
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