TABLE 1–31:  U.S. Flag Vessels by Type and Age (Number of vessels),,,,,,,,
,Vessel type,,,,,,,
Agea,Dry cargo,Tanker,Towboat,Passengerc,Offshore support / crewboatsd,Dry barge,Tank / liquid bargee,Totalb
"1990–91, totalb",900,257,"5,210",721,"1,168","27,110","3,874","39,342"
<6,80,6,132,151,85,"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"
"1992, totalb",497,249,"5,203","1,201","1,205","26,981","3,864","39,313"
<6,36,5,134,219,93,"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"
"1993, totalb",470,205,"5,219","1,243","1,197","26,982","3,970","39,306"
<6,25,3,135,207,103,"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"
"1994, totalb",778,202,"5,179",928,"1,236","26,757","3,966","39,064"
<6,46,4,146,157,107,"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"
"1995, totalb",726,178,"5,127",954,"1,288","27,375","3,985","39,641"
<6,38,5,168,149,119,"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"
"1996, totalb",713,161,"5,177",967,"1,274","28,775","4,036","41,104"
<6,43,7,205,153,123,"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"
"1997, totalb",692,147,"5,173","1,025","1,369","29,040","3,971","41,419"
<6,52,8,227,150,122,"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"
"1998, totalb",714,135,"5,237","1,011","1,423","29,557","3,952","42,032"
<6,56,12,247,150,163,"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"
"1999, totalb",695,142,"5,098",970,"1,470","29,414","3,973","41,766"
<6,60,12,302,144,245,"6,640",565,"7,968"
6–10,49,3,140,146,114,"3,192",298,"3,943"
11–15,97,12,146,183,61,"1,231",39,"1,769"
16–20,146,35,"1,101",120,571,"7,414",742,"10,129"
21–25,99,30,953,95,283,"5,302",760,"7,522"
>25,243,50,"2,447",282,191,"5,491","1,560","10,267"
"2000, totalb",737,135,"4,995",918,"1,414","29,141","4,011","41,354"
<6,66,11,325,134,246,"6,721",582,"8,085"
6–10,50,4,143,118,106,"3,051",329,"3,802"
11–15,113,8,142,178,58,"1,565",48,"2,112"
16–20,136,34,929,124,454,"5,846",602,"8,125"
21–25,105,30,954,90,332,"5,365",712,"7,588"
>25,263,48,"2,497",271,214,"6,461","1,714","11,470"
"2001, totalb",966,120,"5,150",733,"1,573","28,920","4,122","41,588"
<6,114,12,369,84,305,"6,830",623,"8,337"
6–10,76,3,167,81,111,"2,815",388,"3,641"
11–15,132,5,125,138,68,"2,043",85,"2,596"
16–20,139,32,692,110,372,"4,241",329,"5,916"
21–25,154,28,972,77,452,"6,126",805,"8,614"
>25,347,40,"2,818",240,262,"6,712","1,884","12,306"
"2002, totalb",989,108,"5,180",750,"1,591","28,313","4,068","41,002"
<6,113,13,369,70,322,"6,117",595,"7,599"
6–10,86,3,185,92,96,"3,416",419,"4,298"
11–15,130,2,142,136,89,"2,499",172,"3,170"
16–20,114,22,381,117,228,"1,669",134,"2,665"
21–25,175,35,"1,091",75,547,"7,702",843,"10,468"
>25,368,33,"3,004",256,305,"6,731","1,904","12,603"
"2003, totalb",969,104,"5,172",789,"1,609","27,304","4,031","39,983"
<6,114,9,362,69,314,"4,909",604,"6,381"
6–10,93,7,217,89,126,"4,155",396,"5,085"
11–15,110,3,148,122,93,"2,976",260,"3,712"
16–20,127,15,198,133,111,"1,054",71,"1,709"
21–25,168,32,"1,135",84,584,"7,135",774,"9,912"
>25,354,38,"3,105",287,378,"6,884","1,923","12,972"
"2004, totalb",987,103,"5,314",834,"1,746","27,227","4,069","40,290"
<6,126,11,367,72,279,"4,556",676,"6,087"
6–10,112,10,272,97,198,"4,840",453,"5,983"
11–15,95,3,166,119,109,"3,057",296,"3,846"
16–20,132,8,157,144,64,"1,169",35,"1,709"
21–25,130,31,"1,083",92,580,"6,240",639,"8,795"
>25,390,40,"3,262",308,512,"7,152","1,970","13,642"
"2005, totalb",969,100,"5,290",841,"1,768","27,901","4,151","41,028"
<6,115,11,336,62,244,"4,140",743,"5,651"
6–10,106,13,321,96,262,"5,611",512,"6,921"
11–15,74,4,157,114,107,"3,120",333,"3,911"
16–20,137,3,155,150,59,"1,507",43,"2,054"
21–25,116,30,907,98,464,"5,174",535,"7,324"
>25,419,39,"3,406",321,629,"8,113","1,985","14,918"
a  Age is based on the year the vessel was built or rebuilt.,,,,,,,,
b  Totals may be greater than sum of columns because of unclassified vessels and vessels of unknown age; figures include vessels available for operation.,,,,,,,,
"c  Includes passenger excursion/sightseeing, combination passenger and dry-cargo vessels, and ferries.",,,,,,,,
"d  In 1992, offshore supply boats were designated as crewboats.",,,,,,,,
"e  In 1992, tank barges were designated as liquid barges.",,,,,,,,
,,,,,,,,
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 2005 and similar tables in previous years; also available at Internet site http://www.iwr.usace.army.mil as of June 2007.",,,,,,,,