U.S. Flag Vessels as of December 31, 20011

  Age2
Vessel Type Number 0-5 6-10 11-15 16-20 21-25 25+
Vessel (total)3 41,588 8,337 3,641 2,596 5,916 8,614 12,306
Self-Propelled (total) 8,546 884 438 468 1,346 1,683 3,710
   Dry Cargo 966 114 76 132 139 154 347
   Tanker 120 12 3 5 32 28 40
   Pushboat 2,343 155 82 51 338 498 1,217
   Tugboat 2,807 214 85 74 354 474 1,601
   Passenger4 733 84 81 138 110 77 240
   Offshore Supply 1,573 305 111 68 372 452 262
 
Barge (total) 33,042 7,453 3,303 2,128 4,570 6,931 8,596
   Dry Covered 13,817 3,753 1,297 193 2,245 3,751 2,576
   Dry Open 8,717 2,098 1,102 1,160 1,454 1,492 1,408
   Lash/Seabee 1,184 0 126 260 4 111 683
   Deck 5,051 966 280 422 510 754 1,983
   Other Dry Cargo5 151 13 10 8 28 18 62
   Single Hull Tank 695 20 20 10 72 115 458
   Double Hull Tank 2,717 429 346 67 208 570 1,091
   Other Tank6 710 174 22 8 49 120 335

1. Survey date as of December 31, 2001 includes updates through December 5, 2002.
2. Age (in years) is based upon the year the vessel was built or rebuilt, using calendar year 2001 as the base year.
3. Total is greater than sum because 4 unclassified vessels or those of unknown age; figures include vessels available for operation.
4. Includes passenger, excursion/sightseeing.
5. Includes dry cargo barges that may be open or covered, railroad car, pontoon, RO-RO, container, or convertible.
6. Includes tank barges that may be double sided only or double bottom only.

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