IMPROVING SUBDRAINAGE AND SHOULDERS OF EXISTING PAVEMENTS--STATE OF THE ARTS

This state-of-the-art report reviews the existing literature and current practices relating to subdrainage, shoulder structures, and maintenance of existing pavement systems. Methods for classifying the various types of pavement subdrainage are presented. Problems related to subdrainage are discussed in detail. The flow equations which describe saturated and unsaturated water movement in pavement materials and subgrades are discussed. Procedures presently being used for subdrainage design and construction have been presented. The function, problems and design of pavement shoulders have been described in detail. Examples of shoulder designs used by several States are presented. Maintenance practices affecting shoulder performance and mositure related distress are presented. A number of maintenance practices presently being used to decrease the effects of moisture on pavement distress are thoroughly discussed. The general findings of the literature review are summarized and future research needs are recommended. (FHWA)

• Corporate Authors:

  University of Illinois, Urbana-Champaign

  Department of Civil and Environmental Engineering
  205 North Mathews Avenue
  Urbana, IL  United States  61801-2352

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Dempsey, B J
  • Darter, M I
  • Carpenter, S H
• Publication Date: 1982-8

Media Info

• Pagination: 250 p.

Subject/Index Terms

• TRT Terms: Defects; Flow equations; Pavement distress; Pavement maintenance; Pavements; Percent saturation; Road shoulders; State of the art studies; Subdrains; Subgrade (Pavements); Surface drainage
• Old TRIS Terms: Highway drainage
• Subject Areas: Design; Geotechnology; Highways; Maintenance and Preservation; Pavements; I22: Design of Pavements, Railways and Guideways; I42: Soil Mechanics; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 00373073
• Record Type: Publication
• Report/Paper Numbers: FHWA-RD-81- 77 Intrm Rpt., FCP 35D3-252
• Contract Numbers: DOT-FH-11-9175
• Files: TRIS, USDOT
• Created Date: Jun 30 1983 12:00AM