page_title: Seneca Aqueduct
hierarchical_section_title: Seneca Aqueduct
caption_attribution_description: English: Seneca Aqueduct, near Poolesville, Maryland, USA. Built in 1833 to bring the C&amp;O Canal over Seneca Creek. Riley's Lockhouse at upper right. This is an image of a place or building that is listed on the National Register of Historic Places in the United States of America. Its reference number is 78001475
context_page_description: Seneca Aqueduct — or Aqueduct No. 1 — is a naviduct that carries the Chesapeake and Ohio Canal over Seneca Creek in Montgomery County, Maryland. The C&O built eleven aqueducts along its 184.5 miles 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. It is located at the end of Riley's Lock Road in Seneca, Maryland.
context_section_description: Seneca Aqueduct — or Aqueduct No. 1 — is a naviduct that carries the Chesapeake and Ohio Canal (C&O) over Seneca Creek 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.
caption: Aqueduct, with Riley's Lockhouse at upper right.
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