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Specifications governing the construction of the proposed bridge over Buffalo Bayou
Page 1, front
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LaNoue, G. M.. Specifications governing the construction of the proposed bridge over Buffalo Bayou - Page 1, front. 1895. Special Collections, University of Houston Libraries. University of Houston Digital Library. Web. December 19, 2018. https://digital.lib.uh.edu/collection/1970_001/item/489/show/471.

Disclaimer: This is a general citation for reference purposes. Please consult the most recent edition of your style manual for the proper formatting of the type of source you are citing. If the date given in the citation does not match the date on the digital item, use the more accurate date below the digital item.

LaNoue, G. M.. (1895). Specifications governing the construction of the proposed bridge over Buffalo Bayou - Page 1, front. City of Houston, Its Development and Evolution. Special Collections, University of Houston Libraries. Retrieved from https://digital.lib.uh.edu/collection/1970_001/item/489/show/471

Disclaimer: This is a general citation for reference purposes. Please consult the most recent edition of your style manual for the proper formatting of the type of source you are citing. If the date given in the citation does not match the date on the digital item, use the more accurate date below the digital item.

LaNoue, G. M., Specifications governing the construction of the proposed bridge over Buffalo Bayou - Page 1, front, 1895, City of Houston, Its Development and Evolution, Special Collections, University of Houston Libraries, accessed December 19, 2018, https://digital.lib.uh.edu/collection/1970_001/item/489/show/471.

Disclaimer: This is a general citation for reference purposes. Please consult the most recent edition of your style manual for the proper formatting of the type of source you are citing. If the date given in the citation does not match the date on the digital item, use the more accurate date below the digital item.

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Title Specifications governing the construction of the proposed bridge over Buffalo Bayou
Creator (Local)
  • LaNoue, G. M.
Date 1895
Description Specification governing the construction of the bridge over Buffalo Bayou, connecting Marsh Street of the Second Ward with Hill Street of the Fifth Ward.
Donor George Fuermann
Subject.Topical (LCSH)
  • Municipal government
  • City planning
Subject.Name (Local)
  • LaNoue, G. M.
Subject.Geographic (TGN)
  • Houston, Texas
Genre (AAT)
  • documents (object genre)
Language English
Type (DCMI)
  • Text
Original Item Location ID 1970-001, Box 6, Folder 15
Original Collection George Fuermann "Texas & Houston" Collection
Original Collection URL http://archon.lib.uh.edu/index.php?p=collections/findingaid&id=356
Digital Collection City of Houston, Its Development and Evolution
Digital Collection URL http://digital.lib.uh.edu/collection/1970_001
Repository Special Collections, University of Houston Libraries
Repository URL http://info.lib.uh.edu/about/campus-libraries-collections/special-collections
Use and Reproduction This item is in the public domain and may be used freely.
File Name index.cpd
Item Description
Title Page 1, front
Format (IMT)
  • image/jpeg
File Name uhlib_1970_001_b006_f015_005_001.jpg
Transcript \%Q SPECIFICATIONS GOVERNING THE CONSTRUCTION OF THE PROPOSED BRIDGE OVER BUFFALO BAYOU Connecting Marsh Street of the Second Ward with Hill Street of the Fifth Ward. G. M. LaNoue, City Engineer, Houston, Texas. GENERAL DESCRIPTION. The proposed structure shall consist of one swing span three hundred and two (302) feet over all, six bents of trestled spaced twenty feet centres on Hill Street side, and four bents of trestle spaced twenty feet centres on Marsh Street, Second Ward. The arrangement of several bents, swing-span and piers, will be indicated on the drawings. The floor plank on the swing span shall be three inches thick, extending across and com- pletely«covering the lower chord of span. The floor plank shall project three inches beyond the center of hand railing. The ends of the projecting plank to be sawed to line. Each plank will be spiked to each supporting stringer, which in turn shall rest on the transverse floor girder or sidewalk bracket. Floor plank on the trestle approaches shall be of the same quality of lumber as that on the swing span, projecting three inches beyond the center of hand-railing, and the projecting ends of of plank sawed to line. The floor stringers on the swing span and trestle approaches shall consist of twelve lines of 4"xl4", and three lines of 3"xl4" on each walk. On each side of the roadway will be placed a six inches by eight inches wheel guard, resting on 3"x8" shims, both bolted to the floor with f" bolts. The shims will be spaced about every five feet throughout the entire length of structure. On the swing span, and on the outside of the foot-walks, there will be a metallic railing of sections and heights as indicated on the drawings. Outside of the foot-walks of the trestle approaches will be a wooden railing of the dimensions and height as shown in the drawings. The clear distance between the flooring of the swing span and the flooring of the trestle approaches shall not exceed one inch. The stringers in the end panels of the swing span shall increase in length from the side towards the center of the roadway, and shall come within £" of the arc of the circle described by the swing span while in motion. The stringers of the end bents of the trestle approaches immediately next to the end panel of the swing span shall decrease in length from the side towards the center of roadway, and come within £" of the arc of the circle described by the swing span while in motion. The flooring at these points shall be made to conform with the arc of the required circle described by the swing span while in motion, with the opening between them not to exceed the amount above specified. PROPORTION OP PARTS. The sections required in the construction of the swing span are all given on the general sketch and maximum strain diagram. The rivets connecting the parts of any member must be so arranged that the maximum shear shall in no case exceed 9,000 pounds per square inch; nor shall the pressure on the bearing surface (diameter of rivets X thickness of plate) exceed 15,000 pounds per square inch. In field riveting the maximum shear shall in no case exceed 7,500 pounds per square inch.