In 1968 the Joint Highway Research Advisory Council sponsored a program in the Civil Engineering Department at The University of Connecticut to develop a prefabricated underdrain system. The object of this research was to devise an underdrain system to reduce or eliminate some of the problems encountered in design and construction of conventional underdrains using mineral aggregate filters. A prefabricated underdrain was developed from plastic materials and fine mesh cloth, and was tested in both in laboratory and field. Five field sites experiencing problems due to ground water were selected for testing the underdrain, and a total of 2500 lin ft of perfabricated underdrain were installed. Observations to date indicate that the system is an effective means of collecting and removing subsurface water and is much easier to install than systems using aggregate mineral filters, particularly on slopes and other hard to reach areas. It is recommended that prefabricated underdrains be used to stabilize slopes that are sloughing due to excess ground water and that these drains be used on a trial basis in other situations such as along highway cuts. In addition it is recommended that improved manufacturing techniques be developed to obtain the lowest cost drain.

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 36 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00262168
  • Record Type: Publication
  • Report/Paper Numbers: Rept No. JHR 72-52 Final Rpt.
  • Files: TRIS
  • Created Date: Oct 22 1974 12:00AM