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Photo, Print, Drawing Illinois Central Railroad, McComb Subdivision, Mainline Bridge 891.5, Spanning Bonnet Carré Spillway, Norco, St. Charles Parish, LA ICRR Bonnet Carré Spillway Bridge

View 20 images in sequence.
[ Photos from Survey HAER LA-49  ]

More Resources

View 14 images in sequence.
[ Drawings from Survey HAER LA-49  ]
[ Data Pages from Survey HAER LA-49  ]
[ Photo Captions from Survey HAER LA-49  ]

About this Item

Title

  • Illinois Central Railroad, McComb Subdivision, Mainline Bridge 891.5, Spanning Bonnet Carré Spillway, Norco, St. Charles Parish, LA

Other Title

  • ICRR Bonnet Carré Spillway Bridge

Names

  • Historic American Engineering Record, creator
  • Illinois Central Railroad
  • Blaess, A. F.
  • Westfall, C. C.
  • Dunn, O. T.
  • Illinois Central Gulf Railroad
  • Canadian National Railway
  • U.S. Army Corps of Engineers
  • Virginia Bridge and Iron Company
  • U.S. Army Corps of Engineers, New Orleans District, sponsor
  • Illinois Central Railroad, sponsor
  • Hyde, Terri Asendorf, historian
  • Keen, Ann, historian
  • Johnson, Melanie, editor
  • Chaplo, Paul V., photographer
  • HDR, Inc., contractor
  • Marston, Christopher H., transmitter
  • McPartland, Mary, transmitter

Created / Published

  • Documentation compiled after 1968

Headings

  • -  pile bridges
  • -  bents
  • -  timber piles
  • -  fire walls
  • -  steel girder bridges
  • -  transportation
  • -  railroad bridges
  • -  flood control
  • -  Louisiana--St. Charles Parish--Norco

Latitude / Longitude

  • 30.054367,-90.372889

Notes

  • -  Significance: TheIllinois Central Railroad (ICRR) Bonnet Carré Spillway Bridge is significant as a timber trestle bridge of extraordinary length that solved a complex topographical engineering problem. Built in 1934-35 by the ICRR in response to the construction of the Bonnet Carré Spillway, the bridge required extensive and laborious engineering in the planning and design phase. With a length of 11,748', it was referred to as the longest timber rail bridge in the United States in 2014.
  • -  Survey number: HAER LA-49
  • -  Building/structure dates: 1934-1935 Initial Construction
  • -  Building/structure dates: 1981 Subsequent Work
  • -  Building/structure dates: 2000 Subsequent Work
  • -  Building/structure dates: 2011 Subsequent Work
  • -  Building/structure dates: 2016 Subsequent Work

Medium

  • Photo(s): 20
  • Measured Drawing(s): 14
  • Data Page(s): 19
  • Photo Caption Page(s): 4

Call Number/Physical Location

  • HAER LA-49

Source Collection

  • Historic American Engineering Record (Library of Congress)

Repository

Control Number

  • la0773

Rights Advisory

Online Format

  • image
  • pdf

Rights & Access

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Obtaining Copies

If Digital Images Are Displaying

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Access to Originals

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      As a preservation measure, we generally do not serve an original item when a digital image is available. If you have a compelling reason to see the original, consult with a reference librarian. (Sometimes, the original is simply too fragile to serve. For example, glass and film photographic negatives are particularly subject to damage. They are also easier to see online where they are presented as positive images.)
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Cite This Item

Citations are generated automatically from bibliographic data as a convenience, and may not be complete or accurate.

Chicago citation style:

Historic American Engineering Record, Creator, Illinois Central Railroad, A. F Blaess, C. C Westfall, O. T Dunn, Illinois Central Gulf Railroad, Canadian National Railway, et al., Chaplo, Paul V, photographer. Illinois Central Railroad, McComb Subdivision, Mainline Bridge 891.5, Spanning Bonnet Carré Spillway, Norco, St. Charles Parish, LA. St. Charles Parish Norco Louisiana, 1968. editeds by Johnson, Melanie, translateds by Marston, Christopher H.Mitter, and Mcpartland, Marymitter Documentation Compiled After. Photograph. https://aj.sunback.homes/item/la0773/.

APA citation style:

Historic American Engineering Record, C., Illinois Central Railroad, Blaess, A. F., Westfall, C. C., Dunn, O. T., Illinois Central Gulf Railroad [...] Hdr, I., Chaplo, P. V., photographer, Johnson, M., ed. (1968) Illinois Central Railroad, McComb Subdivision, Mainline Bridge 891.5, Spanning Bonnet Carré Spillway, Norco, St. Charles Parish, LA. St. Charles Parish Norco Louisiana, 1968. Marston, C. H. M. & McPartland, M., transs Documentation Compiled After. [Photograph] Retrieved from the Library of Congress, https://aj.sunback.homes/item/la0773/.

MLA citation style:

Historic American Engineering Record, Creator, et al., photographer by Chaplo, Paul V. Illinois Central Railroad, McComb Subdivision, Mainline Bridge 891.5, Spanning Bonnet Carré Spillway, Norco, St. Charles Parish, LA. ed by Johnson, Melanie, trans by Marston, Christopher H.Mitter, and Mcpartland, Marymitter Documentation Compiled After. Photograph. Retrieved from the Library of Congress, <aj.sunback.homes/item/la0773/>.