File:Economic Papers (1912) (14767744075).jpg

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Identifier: economicpapers2228unse (find matches)
Title: Economic Papers
Year: 1912 (1910s)
Authors:
Subjects:
Publisher: Raleigh : N.C. Geological Survey
Contributing Library: State Library of North Carolina, Government & Heritage Library
Digitizing Sponsor: LYRASIS Members and Sloan Foundation

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h 22 CULVERTS AND SMALL BRIDGES FOR
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COUNTRY ROADS IN NORTH CAROLINA 23 comes directly on the floor. Its durability is twice that of two inchflooring, although it costs only one-third more, since flooring must berenewed when worn to an inch thickness. Creosoted lumber is much more durable than ordinary timber andwill cost about $45 per 1,000 ft. B. M. in the eastern part of the State. Small Structures: Wood should never be used for any waterway wherea pipe can be used. The ordinary type of small timber culverts as constructed in mostsections of the State consists of a mudsill imbedded in an earth bankwith floor joists resting directly upon it. Most of the failures come fromundermining of the earth abutments or floating off of the entire struc-ture. A small culvert constructed as shown in Plate I should last until itrots out. The cost of a culvert of this type is approximately $35. Table III below shows the size and spacing of wooden floor joists forlonger span culverts. TABLE III—WOODEN BRIDGES (15 ROADWAY) Span No. of

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https://www.flickr.com/photos/internetarchivebookimages/14767744075/

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Volume
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vol. 22-28
Flickr tags
InfoField
  • bookid:economicpapers2228unse
  • bookyear:1912
  • bookdecade:1910
  • bookcentury:1900
  • bookpublisher:Raleigh___N_C__Geological_Survey
  • bookcontributor:State_Library_of_North_Carolina__Government___Heritage_Library
  • booksponsor:LYRASIS_Members_and_Sloan_Foundation
  • bookleafnumber:542
  • bookcollection:statelibrarynorthcarolina
  • bookcollection:americana
Flickr posted date
InfoField
28 July 2014



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Date/TimeThumbnailDimensionsUserComment
current14:03, 5 October 2015Thumbnail for version as of 14:03, 5 October 20154,000 × 2,508 (713 KB)SteinsplitterBot (talk | contribs)Bot: Image rotated by 90°
07:21, 3 October 2015Thumbnail for version as of 07:21, 3 October 20152,508 × 4,000 (719 KB) (talk | contribs)== {{int:filedesc}} == {{information |description={{en|1=<br> '''Identifier''': economicpapers2228unse ([https://commons.wikimedia.org/w/index.php?title=Special%3ASearch&profile=default&fulltext=Search&search=insource%3A%2Feconomicpapers2228unse%2F fin...

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