Topografische Karte Erie Canal
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Erie Canal
The construction of the Erie Canal was a landmark civil engineering achievement in the early history of the United States. When built, the 363-mile (584 km) canal was the second-longest in the world (after the Grand Canal in China). Initially 40 feet (12 m) wide and 4 feet (1.2 m) deep, the canal was expanded several times, most notably from 1905 to 1918 when the "Barge Canal" was built and over half the original route was abandoned. The modern Barge Canal measures 351 miles (565 km) long, 120 feet (37 m) wide, and 12 feet (3.7 m) deep. It has 34 locks, including the Waterford Flight, the steepest locks in the United States. When leaving the canal, boats must also traverse the Black Rock Lock to reach Lake Erie or the Troy Federal Lock to reach the tidal Hudson. The overall elevation difference is about 565 feet (172 m).
Über diese Karte
Name: Topografische Karte Erie Canal, Höhe, Relief.
Durchschnittliche Höhe: 177 m
Minimale Höhe: 169 m
Maximale Höhe: 188 m