It is reported that with this treatment State highway laid between Kittery and Portland has carried as high as 200 to 2,000 vehicles per day during summer months without requiring too high upkeep costs. Paper presented before Sixth Can. Good Roads Congress. (see also Contract Rec., vol. 33, no. 24, June 11, 1919, pp. 550-551, 1 fig.)
Surface treatment of gravel roads with refined tar
Good Roads
Good Roads ; 17 , n 22
1919
2 pages
2 Figs.
Article (Journal)
English
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