HIGHWAY SHOULDERS AS RELATED TO SURFACE DRAINAGE

THE DESIGN OF HIGHWAY SHOULDERS AND THE SURFACE DRAINAGE OF HIGHWAYS ARE INTERRELATED. EIGHT TYPICAL SHOULDER DESIGNS WITH PROVISIONS FOR HANDLING SURFACE RUNOFF FROM THE PAVEMENT ARE PRESENTED. FOUR DIFFERENT SITUATIONS IN WHICH THE STABILITY AND MAINTENANCE COSTS OF THE SHOULDERS ARE AFFECTED BY SURFACE DRAINAGE ARE DISCUSSED: (1) THE PROBLEM OF CONDUCTING PAVEMENT RUNOFF ACROSS THE SHOULDER TO THE DITCH OR FILL SLOPE WHERE THE HIGHWAY IS ON A SUBSTANTIAL GRADE, (2) SHOULDER DESIGNS THAT ARE UNDESIRABLE FROM A DRAINAGE STANDPOINT, (3) IN THE CASE WHERE AN APPROACH TO A BRIDGE IS PURPOSELY DEPRESSED OVER A FLOOD PLAIN SHOULDER DESIGN IS AFFECTED BY DRAINAGE, AND (4) A COMMON CAUSE OF SHOULDER FAILURE DUE TO RUNOFF IS CAUSED NOT BY THE DESIGN OF THE SHOULDER BUT BY IMPROPER OR INADEQUATE CULVERT DESIGN, OCCURRING AT SIDEHILL LOCATIONS ON LONG DESCENDING GRADES WHERE RUNOFF IS INTERCEPTED BY THE DITCH ON THE HILL SIDE OF THE ROADWAY. THESE FOUR CONDITIONS REPRESENT COMMON CAUSES OF SHOULDER FAILURES RESULTING FROM HIGHWAY SURFACE DRAINAGE. MORE RESEARCH IS NEEDED WITH REGARD TO THE HANDLING OF PAVEMENT RUNOFF ON STEEP GRADES AND FILL SECTIONS.

  • Digital Copy:
  • Supplemental Notes:
    • No 151, pp 4-6, 1 FIG Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
  • Authors:
    • Ackroyd, Richard
  • Discussers:
    • Iurka, Harry H
    • Jens, Stifel W
  • Publication Date: 1957

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00203408
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Jul 7 1994 12:00AM