MAINTENANCE AND DESIRABLE FEATURES OF A MAINTAINABLE SUBSURFACE DRAINAGE SYSTEM

Because subsurface drainage is generally important for the protection of road pavements in areas of high rainfall and high watertable, factors which assist in the maintaining of a serviceable system are discussed. Features of design which affect maintenance are examined. These include the design of the filter material, its compaction, control of the longitudinal grade of the drainage trench, type of inlets/outlets to the drain and their spacing, scour protection and protection against vermin. Problems associated with maintaining a combined subsoil/subsurface and surface drainage system are discussed. A design for a suitable combined system is presented. Practices regarding the flushing of pipes to remove silt and debris from subsurface pipes are given. The importance of clearly indicating the location and important construction details of a subsurface drainage system is stressed. The need to develop a data bank containing construction details, an up-to-date record of maintenance and recommended remedial action is a prime requirement for the operation of an efficient maintenance management system. Periodic maintenance inspections are recommended. (TRRL)

  • Supplemental Notes:
    • Seminar on Maintenance and Drainage Aspects of Road Pavements, Bangalore, July 1-4, 1982. Theme 6: Sub-Surface/Surface Drainage Requirements in Plain Terrain for Reduced Pavement Maintenance (Including Case Studies).
  • Corporate Authors:

    Indian Roads Congress

    Jamnagar House, Shahjahan Road
    New Delhi,   India  110 011
  • Authors:
    • Gerke, R J
  • Publication Date: 1982

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00379166
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Report/Paper Numbers: ANALYTIC
  • Files: ITRD, TRIS, ATRI
  • Created Date: Dec 30 1983 12:00AM