PROTECTING STEEP CONSTRUCTION SLOPES AGAINST WATER EROSION

MULCHING PRACTICES ON A ROADSIDE CUT /3:1 SLOPE/ WERE EVALUATED WITH RESPECT TO CONTROLLING SOIL EROSION AND MINIMIZING GRASS SEED AND FERTILIZER LOSS PRIOR TO GRASS ESTABLISHMENT. A FIELD PLOT RAINFALL SIMULATOR AND A DEVICE TO INTRODUCE ADDITIONAL SURFACE FLOW OVER A TEST PLOT WERE USED TO EVALUATE THE MULCHING PRACTICES. MEASUREMENTS OF SOIL EROSION AND GRASS SEED AND FERTILIZER LOSS WERE MADE FROM RUNOFF SAMPLES TAKEN THROUGH A SERIES OF SIMULATED RAINSTORMS. THE EFFECTIVENESS IN PROTECTING SOIL SURFACES AGAINST WATER EROSION WAS DETERMINED FOR /1/ WOOD CELLULOSE, /2/ FIBERGLASS, /3/ LATEX MATERIAL, /4/ ASPHALT EMULSION, /5/ NETTINGS, AND /6/ A COMBINATION OF ASPHALT EMULSION USED AS AN ANCHORAGE FOR WOODCHIPS, CORNCOBS, WOOD CELLULOSE, FIBERGLASS, AND PRAIRIE HAY. THE BEST PROTECTION WAS PROVIDED BY MATERIALS SUCH AS JUTE NETTING, WOOD EXCELSIOR AND PRAIRIE HAY /1 TON/ACRE/ ANCHORED WITH ASPHALT EMULSION /150 GAL/ACRE/. THE LEAST EFFECTIVE MULCHES WERE THE LATEX /150 GAL/ACRE/ AND A KRAFT PAPER NETTING. ANCHORING A MATERIAL WITH ASPHALT EMULSION PROVIDED INCREASED ADHERENCE TO THE SOIL SURFACE AND WAS GENERALLY BENEFICIAL. /AUTHOR/

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  • Supplemental Notes:
    • Paper sponsored by Committee on Roadside Development and presented at the 46th Annual Meeting. 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:
    • Swanson, N P
    • Dedrick, A R
    • Dudeck, A E
  • Publication Date: 1967

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: pp 46-52
  • Monograph Title: Roadside Development
  • Serial:

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Filing Info

  • Accession Number: 00204680
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Feb 2 1994 12:00AM