File:COMPLETED MINE FACILITIES AT FORT ROSECRANS, 1911, TORPEDO STRUCTURES - Fort Rosecrans, Mining Casemate, Point Loma, San Diego, San Diego County, CA HABS CAL,37-SANDI,29-A-24.tif

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COMPLETED MINE FACILITIES AT FORT ROSECRANS, 1911, TORPEDO STRUCTURES - Fort Rosecrans, Mining Casemate, Point Loma, San Diego, San Diego County, CA
Title
COMPLETED MINE FACILITIES AT FORT ROSECRANS, 1911, TORPEDO STRUCTURES - Fort Rosecrans, Mining Casemate, Point Loma, San Diego, San Diego County, CA
Depicted place California; San Diego County; San Diego
Date Documentation compiled after 1933
Dimensions 8 x 10 in.
Current location
Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print
Accession number
HABS CAL,37-SANDI,29-A-24
Credit line
This file comes from the Historic American Buildings Survey (HABS), Historic American Engineering Record (HAER) or Historic American Landscapes Survey (HALS). These are programs of the National Park Service established for the purpose of documenting historic places. Records consist of measured drawings, archival photographs, and written reports.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

Notes
  • Significance: The Mining Casemate (Building 167) at the old Fort Rosecrans U.S. Army Coastal Defense Facility represents an extremely early use of reinforced concrete as applied to military installations and is the only example of its period and type in southern California. Originally intended as an electronic control facility for the detonation of mines, the underground building was designed to withstand the direct impact of heavy battleship artillery shells, thereby allowing for the continued protection of the harbor against possible invasion. As a result, the design and construction of the facility were directed solely toward the uninterrupted operation of the unit with little, if any, regard for user comfort. The building is, therefore, a remarkably pure expression of utilitarian construction and design where form is dictated entirely by function. Built in 1897, the structure was remodeled in 1899, 1909, and 1917 in efforts to upgrade it in accordance with progressive developments in warfare planning and technology.
  • Survey number: HABS CA-2255-A
Source https://www.loc.gov/pictures/item/ca1607.photos.015853p
Permission
(Reusing this file)
Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.
Object location32° 42′ 55.01″ N, 117° 09′ 23″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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