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WHERE ROCK SANDWICH USE<br />
IS QUESTIONABLE<br />
ROCK SANDWICHES DO NOT PROVIDE<br />
THE SAME VALUE FOR ROAD CUTS IN<br />
SLOWLY PERMEABLE SOILS SUCH AS<br />
LACUSTRINE SEDIMENTS OR MARINE<br />
SEDIMENTS AS THEY DO IN MORE<br />
PERMEABLE SOILS SUCH AS SANDLY<br />
LOAM TO LOAMY SAND GLACIAL<br />
TILLS
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