Public works . bituminous concrete base construction is now gen-erally as low as if not lower than the portland cement con-crete base. This tj-pe of base has been used in Oregon, Cali-fornia, Arizona, Idaho, Utah, ^lontana, Washington, Wyomingand British Columbia. The U. S. Army Department and theU. S. Bureau of Public Roads adopted dense bituminous con-crete base on all of the principal roads of Camp Lewis, Wash-ington, totaling about 500,0000 square yards. The wearing sur-face was warrenite-bitulithic and local bank gravel w-as usedfor both wearing surface and base, and Mr. Warren claims tha
Public works . bituminous concrete base construction is now gen-erally as low as if not lower than the portland cement con-crete base. This tj-pe of base has been used in Oregon, Cali-fornia, Arizona, Idaho, Utah, ^lontana, Washington, Wyomingand British Columbia. The U. S. Army Department and theU. S. Bureau of Public Roads adopted dense bituminous con-crete base on all of the principal roads of Camp Lewis, Wash-ington, totaling about 500,0000 square yards. The wearing sur-face was warrenite-bitulithic and local bank gravel w-as usedfor both wearing surface and base, and Mr. Warren claims thatno cantonment roads of any t>-pe whatever have proved souniformly successful under the vigorous traffic of army can-tonments as these roads in Camp Lewis. NEW SAN FRANCISCO STREET SIGNS. San Francisco needs more and better street name signs,and. with a view to meeting this need, the Engineering De-partment turned over to one of its employes, R. S. Wood-ward, the work of designing a sign for general use. The.
Size: 876px × 2855px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectmunicip, bookyear1896
