Seneca Aqueduct

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Seneca Aqueduct
SenecaAqueduct.JPG
Aqueduct, with Riley's Lockhouse at upper right.
Seneca Aqueduct is located in Maryland
Seneca Aqueduct
Nearest city Poolesville, Maryland
Coordinates 39°4′7.45″N 77°20′28.22″W / 39.0687361°N 77.3411722°W / 39.0687361; -77.3411722Coordinates: 39°4′7.45″N 77°20′28.22″W / 39.0687361°N 77.3411722°W / 39.0687361; -77.3411722
Part of Seneca Historic District (Poolesville, Maryland) (#78001475[1])
Added to NRHP November 15, 1978

Seneca Aqueduct — or Aqueduct No. 1 — carries the Chesapeake and Ohio Canal (C&O) over Seneca Creek (Potomac River) in Montgomery County, Maryland. The C&O built eleven aqueducts along its 184.5 miles (296.9 km) length. Seneca Aqueduct is a unique structure, not only being the first built, but also the only red sandstone aqueduct on the C&O−and the only aqueduct that is also a lock (Lock 24, or Riley's Lock). It is located at the end of Riley's Lock Road in Seneca, Maryland.

History[edit]

Seneca Aqueduct was built from 1828 to 1833 with three red sandstone arches quarried in the nearby Seneca Quarry, just a few hundred feet to the west. The initial stretch of the C&O Canal opened in 1830 up to Seneca Creek; the next segment opened from Seneca to Harpers Ferry in 1833. This included a sizable turning basin, just west of the aqueduct, where canal boats could anchor or turn around. Next to the aqueduct and lock is the lock keeper's house, also made from Seneca red sandstone. Because of the canal, the nearby quarry operations, and additional mills on Seneca Creek, the town of Seneca was an active working class community.

In 1897, the steam packet boat Anna Wilson leaving the aqueduct, collided with a freight boat loaded with watermelons, and sank. There were no injuries to the passengers. Local residents had "a ball" fishing out the watermelons floating in the basin.[2]

The canal closed in 1924 after ninety-six years in operation.

A major flood in September 1971 took out the westernmost of the three arches. The National Park Service has since shored up the aqueduct with steel beams.[3]

Seneca Aqueduct is part of the C&O Canal National Historic Park and is administered by the National Park Service. The aqueduct is included in the Seneca Historic District[4] in Montgomery County, Maryland.

Seneca Aqueduct
The Seneca Aqueduct in 1936, before collapse
Seneca Aqueduct today
The Seneca Aqueduct today

References[edit]

  1. ^ "National Register Information System". National Register of Historic Places. National Park Service. 2010-07-09. 
  2. ^ Hahn, Thomas Towpath guide to the Chesapeake & Ohio Canal; Georgetown Tidelock to Cumberland American Canal and Transportation Center, 1993. ISBN 9780933788664, p. 67
  3. ^ Peck, Garrett (2012). The Potomac River: A History and Guide. Charleston, SC: The History Press. pp. 62–63. ISBN 978-1609496005. 
  4. ^ Dorothy Muir; May Ann Kephart; Austin Kiplinger (December 1975). "National Register of Historic Places Inventory -- Nomination Form: Seneca Historic District" (PDF). Mayland State Archives. Retrieved January 8, 2015. 

External links[edit]