SHOULDER MAINTENANCE CONSIDERATIONS

RESULTS OF PERIODIC SURVEYS OVER A PERIOD OF 8 YEARS OF A VARIETY OF SHOULDER DESIGNS CONSTRUCTED IN MISSOURI ARE REPORTED. THE RATING SYSTEM ON WHICH THE EVALUATION IS BASED IS DESCRIBED. FACTORS SUCH AS LOOSE MATERIAL ON THE SHOULDER, DELINEATION, ROUGHNESS, RUTTING, SOFTNESS, AND DEPRESSIONS ARE GIVEN CONSIDERATION. COSTS OF CONSTRUCTION (ESTIMATED FROM BID PRICES) AND MAINTENANCE (OBTAINED FROM DISTRICT PERSONNEL) ARE REPORTED. THREE-INCH GRANULAR SHOULDER; 6-INCH GRANULAR SEAL-COATED-SHOULDER COMPACTED AT 95 PERCENT AASHO T-99; 6-INCH GRANULAR COLOR-COATED OR CALCIUM CHLORIDE TREATED SHOULDER; 6-INCH GRANULAR MATERIAL STABILIZED WITH ASPHALT; COMPARABLE 6-YEAR OLD SHOULDERS WITH SOIL CEMENT AND SAND ASPHALT ARE DESCRIBED. A FULL DEPTH GRANULAR SHOULDER CONSISTING OF A SEALED DENSE-GRADED GRANULAR SHOULDER ON AN OPEN GRADED AGGREGATE BASE WITH 2 FOOT X 2 INCH EDGE STRIP OF ASPHALTIC CONCRETE IS CONSIDERED USEFUL FOR AN ADT RANGE FROM 3,500 TO 20,000. FOR ADT'S IN EXCESS OF 20,000, A HIGH-TYPE RIGID SHOULDER CONSISTING OF A 2 INCH AC SURFACE COURSE ON A 5 INCH BITUMINOUS STABILIZED BASE ON A FULL DEPTH OPEN GRADED AGGREGATE BASE IS RECCOMMENDED.

• Record URL:
  https://onlinepubs.trb.org/Onlinepubs/trcircular/142/142-005.pdf
• Supplemental Notes:
  • 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.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Murray, L T
• Publication Date: 1973-4

Media Info

• Media Type: Digital/other
• Pagination: p. 10-11
• Serial:
  • Highway Research Circular
  • Issue Number: 142
  • Publisher: Highway Research Board (HRB)

Subject/Index Terms

• TRT Terms: Bituminous aggregates; Costs; Highway maintenance; Road shoulders
• Identifier Terms: American Association of State Highway Officials
• Subject Areas: Finance; Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 00219094
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Aug 31 2000 12:00AM