Information concerning the methods and experimenal roads constructed by the Office of Public Roads. Discusses the soil conditions in different localities, describing the road improvement applicable to each. (9500 w.) (No 12957 N)
Sand-clay and earth roads in the Middle West
U S Dept Agri, Circ
1910
Ills.
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1928
|Improving earth Clay and Sand Roads
Engineering Index Backfile | 1922
|Engineering Index Backfile | 1929
|Engineering Index Backfile | 1910
Sand-clay roads in North Carolina
Engineering Index Backfile | 1912