GRAVEL STABILIZED SHOULDERS FOR TURF AS USED ON THE NATCHEZ TRACE PARKWAY

THREE SECTIONS OF THE PARKWAY, WHICH EXTENDS FROM NATCHEZ TO NASHVILLE, WERE CHOSEN FOR GRAVEL- STABILIZED TURF SHOULDERS. THE FIRST, EXTENDED 34 MILES NORTHEAST OF NATCHEZ, WAS CHARACTERIZED BY CONSIDERABLE GRAVEL IN THE ROADBED MATERIAL; THE CLIMATE IS CONTINENTAL. THE SECOND, 15 MILES LONG THROUGH THE MIDDLE OF ALABAMA, EXHIBITS UNCONSOLIDATED CLAYS WITH OCCASIONAL SANDS, SO THAT GRAVEL HAD TO BE IMPORTED; THE CLIMATE IS ONE OF SHORT, MILD WINTERS AND LONG, HOT SUMMERS. THE THIRD, 12 MILES LONG AT THE ALABAMA--TENNESSE BORDER, HAD LOESS SOIL AND UNCONSOLIDATED SAND, GRAVEL, AND CLAY; THE CLIMATE IS TEMPERATE AND HUMID. ALL THREE AREAS GET ABOUT 50 INCHES OF RAIN ANNUALLY. TRAFFIC IS RESTRICTED TO AUTOMOBILES. THE SPECIFICATIONS AND CONSTRUCTION PHASES ARE DESCRIBED. CONSTRUCTION OF THE SHOULDERS WAS COMPLETED IN THE LATE AUTUMN, AND PLANTING WAS DELAYED UNTIL THE FOLLOWING SPRING. THE TYPES OF GRASSES AND THE PLANTING PROCEDURE ARE DESCRIBED. COSTS ARE ITEMIZED BY CATEGORY. TESTS AT UP TO 60 MPH ON THE SHOULDERS FOLLOWING SATURATING RAINS HAVE SHOWN THE TURF TO WITHSTAND THE WHEEL LOADS WITHOUT RUTTING.

  • Supplemental Notes:
    • No 613, pp 3-13, 2 FIG, 1 TAB, 9 PHOT
  • Authors:
    • Buchanan, C H
    • Iurka, H H
  • Discussers:
    • Slack, T
  • Publication Date: 1958

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Filing Info

  • Accession Number: 00205110
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 22 1971 12:00AM