Library Of Congress
Library Of CongressPublic Domain ArchivePart of Not developed or endorsed by the Library of Congress
  • searchSearch
  • photo_albumStories
  • collectionsCollections
  • infoAbout
  • star_rateUpgrade
  • account_boxLogin
Seven Foot Knoll Lighthouse, Mouth of Patapsco River, Riviera Beach, Anne Arundel County, MD

Seven Foot Knoll Lighthouse, Mouth of Patapsco River, Riviera Beach, Anne Arundel County, MD

  • save_altThumbnail200x200
  • save_altSmall510x640
  • save_altMedium815x1024
  • save_altLarge1274x1600
  • save_altOriginal3057x3840
  • photo_size_select_largeUpscale 2x6114x7680


Significance: Built in 1856, the Seven-Foot Knoll Lighthouse was the second screwpile structure built by the U.S. Lighthouse Service. The present structure contains some elements of the original cast-iron structure, and the house dates from the late 19th Century. The light is historically linked to the development of the Port of Baltimore and sits beside one of the busiest shipping lanes on the East Coast. Technologically, the screwpile form illustrates Americans' ability to produce large cast-iron foundry castings, the same development that produced cast-iron architecture. In the period 1835-1860, Baltimore was a leading national center of this new metal-working technology and of new marine engineering techniques. Seven-Foot Knoll is, arguably, the most significant of the remaining screwpile structures.
Survey number: HAER MD-54
Building/structure dates: 1856 Initial Construction
Building/structure dates: 1910 Subsequent Work



Historic American Engineering Record, creator
Murray & Hazelhurst


Riviera Beach39.16678, -76.50802
Google Map of 39.1667757, -76.5080177


Library of Congress

Copyright info

No known restrictions on images made by the U.S. Government; images copied from other sources may be restricted.

Exploreriviera beach

Exploremurray and hazelhurst

Exploreseven foot knoll lighthouse

Library Of Congress

The objects in this archive are from Library of Congress - the nation’s first established cultural institution and the largest library in the world, with millions of items including books, recordings, photographs, maps and manuscripts in its collections. The Library provides Congress, the federal government and the American people with a rich, diverse and enduring source of knowledge to inform, inspire and engage them and support their intellectual and creative endeavors.

Disclaimer: A work of the Library of Congress is "a work prepared by an officer or employee" of the federal government "as part of that person's official duties." In general, under section 105 of the Copyright Act, such works are not entitled to domestic copyright protection under U.S. law and are therefore in the public domain. This website is developed as a part of the world's largest public domain archive,, and not developed or endorsed by the Library of Congress,

Developed by GetArchive, 2015-2020