File:Chicago & North Western Railway viaduct over Des Moines River, near Boone, Iowa. Chicago & Northwestern Railroad Boon Viaduct (HAER) (cropped).jpg

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Description
English: ELEVATION OF TRUSS, FROM NORTH, WITH TRAIN - Chicago & North Western Railway viaduct over Des Moines River, near Boone, Iowa. This bridge is one of the last projects of noted bridge engineer George Morison, who died two years after the structure was built. The bridge was the longest and heaviest viaduct of its time, and may be the longest extant double-track railroad viaduct in the world. It is listed in the National Register of Historic Places.Historic American Engineering Record, Library of Congress Prints and Photographs Division:
  • Survey number: HAER IA-44
Date after 1993
date QS:P,+1993-00-00T00:00:00Z/7,P1319,+1993-00-00T00:00:00Z/9
Source

https://www.loc.gov/pictures/item/ia0420.color.571504c/

This image is available from the United States Library of Congress's Prints and Photographs division
under the digital ID hhh.ia0420.
This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

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This file comes from the Historic American Engineering Record (HAER). This is a program 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.

English | +/−

Author Not provided, Historic American Engineering Record, Survey number: HAER IA-44
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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.
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Date/TimeThumbnailDimensionsUserComment
current05:19, 14 March 2017Thumbnail for version as of 05:19, 14 March 2017945 × 747 (281 KB)TaterianFile:Chicago & North Western Railway viaduct over Des Moines River, near Boone, Iowa.jpg Chicago & Northwestern Railroad Boon Viaduct (HAER).jpg cropped 8 % horizontally and 9 % vertically using CropTool with precise mode.
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Retrieved from "https://en.wikipedia.org/wiki/File:Chicago_%26_North_Western_Railway_viaduct_over_Des_Moines_River,_near_Boone,_Iowa._Chicago_%26_Northwestern_Railroad_Boon_Viaduct_(HAER)_(cropped).jpg"