Potomac Aqueduct. Hydrographic survey of the Potomac River near Georgetown.... Survey made in the fall of 1832... [included in] Captain Turnbull's report on the survey and construction of the Alexandria Aqueduct.

[Washington.]: Letter of the Secretary of War. 24th Cong/1st Sess/House Doc 261. 1836. Map is folded as issued. Clean and foxing-free. Report is disbound with limited foxing. Edges a bit curled under. Item #3535

A nice large-scale survey "shewing the position of the [proposed] aqueduct, its connection with the Ch. & Ohio Canal on the North bank, and with the Alexandria Canal on the South bank of the river." The survey area includes part of Georgetown (showing seven named streets and College Hill) and part of present-day Rosslyn, Virginia, where the Key Bridge now crosses the Potomac. Theodore Roosevelt Island is identified as Analostan Isld. The map remains bound in a U.S. Government document titled "Captain Turnbull's report on the survey and construction of the Alexandria Aqueduct." The report provides an extensive description of the construction of the aqueduct through 1835. (The project was completed in 1843.) Besides the map, the report contain 21 folded engineering drawings of the equipment and components of the project. For the map: Claussen and Friis, Descriptive Catalog of Maps Published by Congress, 1817-1843: 141. Swem, Maps Relating to Virginia: 573.

Price: $400.00