Bed Load Mobility: Interim Report

Details

• Creators:
  Thompson, David
• Corporate Creators:
  Texas Tech University. Dept. of Civil Engineering
• Corporate Contributors:
  Texas Department of Transportation. Research and Technology Implementation Office ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Field studies
  • Hydraulics
  • Sediments
  • Streambeds
  • Streams
• Publication/ Report Number:
  FHW A/TX-05/0-4695-2
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  Texas. Department of Transportation
• Abstract:
  Significant work was undertaken during the first year of the bed-mobility research project (TxDOT 0-4695). A literature review was completed, from which the most significant finding was that no literature treating the design of low-water stream crossings was found. However, much research has been invested in gravel-bottomed streams. The dynamics of sediment transport, while a difficult subject, has a rich literature. Results of the field trip from July 2004 are still being digested. It appears that a number of methods for characterizing bed composition are available and will produce similar results. A single run of the physical model was made. The researchers can produce behaviors in the flume that are similar to what was observed in the field. More work is necessary in this area. The conclusion is that it is still early in the research project. Current lines of research need to be completed before an assessment of the benefits of project continuation past the two-year mark can be made. It is suggested that a project meeting be held during the first part of calendar year 2005 (before the semi-annual reports are due) and that a determination of the fate of continued research be made at that time.
• Format:
  PDF
• Funding:
  0-4695
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/88509/dot_88509_DS1.pdf
• File Type:
  [PDF - 1.07 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:67e025a6be6c7474a807b8dbf6bf2c55f125e014597e388ea2d04f754d4c31e21dde8b32afe03378a225df2c22137bb3e98fafa3fa64fc31e54cd2312439c735