Table 1-28. U.S. Flag Vessels by Type and Age (Number of vessels)

Table 1-28. U.S. Flag Vessels by Type and Age (Number of vessels)

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Agea Vessel type
Dry cargo Tanker Towboat Passengerb Offshore support/crewboatsc Dry barge Tank/ liquid barged Totale
1990-91               
<=5 80 6 132 151 85 2,335 162 2,951
6-10 161 38 706 120 318 4,570 316 6,229
11-15 212 50 1,029 110 474 7,639 829 10,343
16-20 141 35 844 80 144 6,374 750 8,368
21-25 82 38 750 65 84 2,607 759 4,385
>25 196 86 1,718 188 51 3,372 1,049 6,660
Totale 900 257 5,210 721 1,168 27,110 3,874 39,342
1992               
<=5 36 5 134 219 93 3,224 296 4,012
6-10 73 28 398 198 208 1,783 121 2,829
11-15 135 54 1,137 203 567 9,114 902 12,150
16-20 73 33 926 169 189 6,696 740 8,853
21-25 31 42 716 122 91 2,475 677 4,167
>25 124 82 1,874 287 53 3,496 1,123 7,049
Totale 497 249 5,203 1,201 1,205 26,981 3,864 39,313
1993               
<=5 25 3 135 207 103 3,558 325 4,356
6-10 67 22 205 221 107 1,070 68 1,764
11-15 135 43 1,221 211 597 8,810 869 11,894
16-20 70 33 968 164 218 6,772 791 9,019
21-25 41 31 674 129 106 2,904 655 4,543
>25 128 73 2,008 311 64 3,713 1,256 7,555
Totale 470 205 5,219 1,243 1,197 26,982 3,970 39,306
1994               
<=5 46 4 146 157 107 3,630 399 4,489
6-10 103 12 151 185 61 1,171 36 1,719
11-15 200 36 1,135 123 540 7,903 754 10,691
16-20 130 44 966 122 309 6,314 799 8,684
21-25 90 32 664 82 130 3,873 638 5,509
>25 206 74 2,107 259 86 3,706 1,327 7,765
Totale 778 202 5,179 928 1,236 26,757 3,966 39,064
1995               
<=5 38 5 168 149 119 3,975 489 4,943
6-10 90 8 134 195 58 1,483 46 2,014
11-15 168 34 959 133 463 6,387 611 8,760
16-20 135 38 988 121 412 6,507 736 8,939
21-25 80 29 726 91 141 4,897 697 6,661
>25 213 64 2,146 263 92 3,966 1,403 8,148
Totale 726 178 5,127 954 1,288 27,375 3,985 39,641
1996               
<=5 43 7 205 153 123 5,189 573 6,293
6-10 74 8 118 188 61 2,041 87 2,577
11-15 141 29 715 142 351 4,505 346 6,229
16-20 155 36 1,036 119 460 7,234 840 9,881
21-25 79 23 842 87 155 5,416 723 7,325
>25 229 62 2,386 290 144 4,766 1,576 9,453
Totale 713 161 5,177 967 1,274 28,775 4,036 41,104
1997               
<=5 52 8 227 150 122 5,515 519 6,593
6-10 66 2 118 187 94 2,582 181 3,230
11-15 96 27 396 152 223 1,800 137 2,831
16-20 183 36 1,173 131 588 8,943 928 11,982
21-25 84 21 918 102 177 5,772 727 7,801
>25 209 53 2,332 302 159 4,284 1,477 8,816
Totale 692 147 5,173 1,025 1,369 29,040 3,971 41,419
1998               
<=5 56 12 247 150 163 5,877 485 6,991
6-10 55 3 124 168 105 3,117 267 3,839
11-15 105 19 196 166 111 1,113 72 1,782
16-20 179 31 1,198 129 634 8,591 865 11,626
21-25 88 22 979 106 211 5,909 763 8,076
>25 230 48 2,487 292 195 4,817 1,499 9,573
Totale 714 135 5,237 1,011 1,423 29,557 3,952 42,032

a Age is based on the year the vessel was built or rebuilt.
b Includes passenger excursion/sightseeing, combination passenger and dry cargo vessels, and ferries.
c In 1992, offshore supply boats were designated as crewboats.
d In 1992, tank barges were designated as liquid barges.
e Totals may be greater than sum of columns because of unclassified vessels and vessels of unknown age; figures include vessels         available for operation.

SOURCE: U.S. Army Corps of Engineers, Waterborne Transportation Lines of the United States, Volume 1, National Summaries (New Orleans, LA: Annual issues), Table 4 in 1998 and similar tables in previous years; also available on Internet site www.wrsc.usace.army.mil/ndc/wtlusvl1.pdf as of June 21, 2000.