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.

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Filing Info

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