File:GENERAL VIEW FROM SOUTHEAST, SOUTHEAST AND NORTHEAST SIDES - Locks and Dam No. 15, Locks Operator's Shelter House, Arsenal Island, Upper Mississippi River, Rock Island, Rock HAER ILL, 81-ROCIL, 5A-1.tif

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GENERAL VIEW FROM SOUTHEAST, SOUTHEAST AND NORTHEAST SIDES - Locks and Dam No. 15, Locks Operator's Shelter House, Arsenal Island, Upper Mississippi River, Rock Island, Rock Island County, IL
Title
GENERAL VIEW FROM SOUTHEAST, SOUTHEAST AND NORTHEAST SIDES - Locks and Dam No. 15, Locks Operator's Shelter House, Arsenal Island, Upper Mississippi River, Rock Island, Rock Island County, IL
Depicted place Illinois; Rock Island County; Rock Island
Date Documentation compiled after 1968
Dimensions 5 x 7 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
HAER ILL, 81-ROCIL, 5A-1
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 U.S. Army Corps of Engineers' 1927-1940 Upper Mississippi River 9-Foot Channel Project changed the free-flowing river into an intra-continental canal, regulated and controlled for the promotion of commerce. The 29 lock and dam complexes that comprise this slack-water navigation system constitute seminal developments in the technological history of American river navigation. Locks and Dam No. 15 was the first complex, and served, despite its unique features, as a prototype for the whole system. This Lock Operator's Shelter House is one of those unique features. It was only necessary because the auxiliary lock was complete and usable. Most complexes included only the upstream gate and footings for an auxiliary lock, and thus could be operated from the landward side of the main lock.
  • Survey number: HAER IL-27-A
Source https://www.loc.gov/pictures/item/il0738.photos.184906p
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.
Camera location41° 30′ 33.98″ N, 90° 34′ 43″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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current10:46, 17 July 2014Thumbnail for version as of 10:46, 17 July 20145,000 × 3,574 (17.04 MB) (talk | contribs)GWToolset: Creating mediafile for Fæ. HABS 16 July 2014 (1201:1400)

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