Transport Research International Documentation (TRID) https://trid.trb.org/ en-us Copyright © 2026. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Transport Research International Documentation (TRID) https://trid.trb.org/Images/PageHeader-wTitle.jpg https://trid.trb.org/ ESTIMATION OF SOIL PROPERTIES FROM PENETRATION DATA AND SOIL CLASSIFICATION https://trid.trb.org/View/196938 Fri, 30 Mar 1984 00:00:00 GMT https://trid.trb.org/View/196938 A GENERALIZED INVESTIGATION OF POTENTIALLY POOR SOIL SUPPORT BY REGIONAL GEOMORPHIC UNITS WITHIN THE CONTERMINOUS 48 STATES https://trid.trb.org/View/121659 Tue, 16 May 1972 00:00:00 GMT https://trid.trb.org/View/121659