Table 9.--Transportation of construction sand and gravel in the United States to site of first sale or use1/,2/ (Thousand metric tons unless otherwise specified) --------------------------------------------------------------------------------------------------------------------- 1971 1972 1973 -------------------------- -------------------------- -------------------------- Quantity Percent Quantity Percent Quantity Percent Method of shipment of total of total of total --------------------------------------------------------------------------------------------------------------------- Truck------------------------------ 767,979 92 759,056 91 820,880 92 Rail------------------------------- 39,268 4 40,246 5 37,776 4 Waterway--------------------------- 24,764 3 24,539 3 29,652 3 Not shipped, used at site---------- -- -- -- -- -- -- Unspecified------------------------ 2,233 1 5,620 1 4,026 1 ---------------------------------------------------------------------------------- Total3/----------------------- 834,242 100 829,462 100 892,334 100 ---------------------------------------------------------------------------------- 1974 1975 1976 -------------------------- -------------------------- -------------------------- Quantity Percent Quantity Percent Quantity Percent of total of total of total ---------------------------------------------------------------------------------- Truck------------------------------ 710,225 86 619,494 86 693,867 86 Rail------------------------------- 49,131 6 35,329 5 35,401 4 Waterway--------------------------- 22,154 3 27,501 4 30,097 4 Not shipped, used at site---------- 33,005 4 28,220 4 31,952 4 Unspecified------------------------ 6,166 1 5,621 1 11,685 2 ---------------------------------------------------------------------------------- Total3/----------------------- 820,682 100 716,165 100 803,001 100 ---------------------------------------------------------------------------------- 1977 1978 1979 -------------------------- -------------------------- -------------------------- Quantity Percent Quantity Percent Quantity Percent of total of total of total ---------------------------------------------------------------------------------- Truck------------------------------ NA NA 776,914 86 769,566 87 Rail------------------------------- NA NA 25,456 3 23,151 3 Waterway--------------------------- NA NA 17,745 2 23,904 3 Not shipped, used at site---------- NA NA 75,369 8 69,935 8 Unspecified------------------------ NA NA 8,215 1 1,598 (4/) ---------------------------------------------------------------------------------- Total3/----------------------- 897,900 100 903,739 100 888,135 100 ---------------------------------------------------------------------------------- 1980 1982 1984 -------------------------- -------------------------- -------------------------- Quantity Percent Quantity Percent Quantity Percent of total of total of total ---------------------------------------------------------------------------------- Truck------------------------------ 648,003 90 468,007 87 624,814 89 Rail------------------------------- 13,662 2 6,194 1 3,626 1 Waterway--------------------------- 10,478 1 12,279 2 15,241 2 Not shipped, used at site---------- 45,441 6 50,404 9 54,864 8 Unspecified------------------------ 3,094 (4/) 1,984 (4/) 3,504 (4/) ---------------------------------------------------------------------------------- Total3/----------------------- 720,668 100 538,868 100 702,071 100 ----------------------------------- See footnote at end of table. Table 9.--Transportation of construction sand and gravel in the United States to site of first sale or use1/,2/--Continued (Thousand metric tons unless otherwise specified) --------------------------------------------------------------------------------------------------------------------- 1986 1988 1990 -------------------------- -------------------------- -------------------------- Quantity Percent Quantity Percent Quantity Percent Method of shipment of total of total of total --------------------------------------------------------------------------------------------------------------------- Truck------------------------------ 412,150 52 363,377 43 363,781 44 Rail------------------------------- 8,899 1 6,442 1 5,262 1 Waterway--------------------------- 18,025 2 20,147 3 13,063 2 Not shipped, used at site---------- 304,398 38 18,795 2 135,715 16 Unspecified------------------------ 57,495 7 428,901 51 308,261 37 ---------------------------------------------------------------------------------- Total3/----------------------- 801,045 100 837,695 100 826,083 100 --------------------------------------------------------------------------------------------------------------------- NA Not available. 1/Includes industrial sand and gravel for years 1971-80. 2/Sand and gravel became a biennial survey in 1981. No table by method of transportation for the odd-numbered years is therefore available. 3/Data may not add to totals shown because of independent rounding and conversions to metric tons. 4/Less than 1/2 unit.