This yard was started by Hammond Rousse and Albert Tredway in 1851, as Iowa Iron Works. It was reconstructed in 1905 as Dubuque Boat & Boiler Works and closed in 1972. From 1895 on, it was located in the Ice Harbor, where the National Mississippi River Museum is now. If anyone can add to the table below, please send your info to timcolton@aol.com.
| Hull # | Original Name | Original Owner | Vessel Type | GT | Feet | Built | Disposition |
| Built by Iowa Iron Works | |||||||
| Clyde | William Hopkins? | Steamboat | 121 | 1870 | First iron-hulled boat built for the Mississippi River | ||
| W. M. Hopkins | Barge | 27 | 1871 | ||||
| J. G. Chapman | Lumber Steamer | 94 | 1872 | ||||
| King of Siam | Yacht | 1876 | |||||
| Queen | Lake Okoboji | Excursion Boat | 1884 | In service 1960s | |||
| Ida Patton | 26 | 1884 | |||||
| J. K. Graves | Raft Boat | 96 | 1885 | ||||
| Jeanne Hopkins | 9 | 1888 | |||||
| Cherokee | Packet | 631 | 1888 | ||||
| Ferdinand Herold | Packet | 900 | 1890 | ||||
| Reliance | 59 | 1890 | |||||
| Joy Patton | 63 | 1891 | |||||
| L. E. Patton | 94 | 1894 | |||||
| Windom | US Coast Guard | Revenue Cutter | 670 | 170 | 11-May-96 | Later Comanche 1915, USN/USCG, sold 1930, Turquino 1933, deleted 1951 | |
| Quincy | Steamboat | 1896 | |||||
| Charles H. Organ | 166 | 1897 | |||||
| Ericsson (TB 2) | US Navy | Torpedo Boat | 120 | 149 | 18-Feb-97 | Sunk as target 1912. | |
| William K. Kavanaugh | 203 | 1898 | |||||
| L. S. Thorne | Rail Transfer | 1,217 | 1898 | ||||
| Betsey Ann | Steamboat | 295 | 1899 | ||||
| Gen. John Newton | Corps of Engineers | Towboat | 221d | 175 | 1899 | ||
| Annie Russell | Yacht | 127 | 1902 | ||||
| Sprague | Sternwheel Towboat | 1,479 | 1902 | ||||
| Pelican | Rail Transfer | 1,079 | 1902 | ||||
| Robert E. Carr | 30 | 1903 | |||||
| Mary Stewart | 62 | 1905 | |||||
| Built by Dubuque Boat & Boiler Works | |||||||
| Albatross | Louisiana & Mississippi Valley Transfer Co | Rail Transfer | 1,557 | 305 | 1907 | Later casino vessel Admiral 1940, scrapped 2011. | |
| Fort Chartres | Corps of Engineers | Cutter Dredge | 993 | 197 | 1908 | ||
| Fort Gage | Corps of Engineers | Cutter Dredge | 993 | 197 | 1908 | Sold as freight barge Fort Gage, active | |
| Ruth | 89 | 1909 | |||||
| B. F. Yoakum | Rail Transfer | 1,103 | 308 | 1910 | |||
| Henderson | Tanker | 82 | 1912 | ||||
| Iroquois | Corps of Engineers | Towboat | 176d | 148 | 1912 | ||
| Scioto | Corps of Engineers | Towboat | 229d | 158 | 1912 | ||
| Tollinger | Corps of Engineers | Towboat | 510d | 171 | 1913 | ||
| H S Taber | Corps of Engineers | Cutter Dredge | 754d | 233 | 1914 | ||
| Robert McGregor | Corps of Engineers | Cutter Dredge | 769d | 208 | 1914 | ||
| Comanche | Corps of Engineers | Towboat | 200d | 141 | 1915 | ||
| Warioto | Corps of Engineers | Towboat | 365d | 141 | 1915 | ||
| Denison | Corps of Engineers | Snagboat | 137 | 1915 | |||
| SC 149 | US Navy | Sub Chaser | 85d | 110 | 15-Jan-18 | Sold 1921. | |
| SC 150 | US Navy | Sub Chaser | 85d | 110 | 15-Jan-18 | Sold 1921. | |
| Kankakee | US Coast Guard | Tender | 383d | 182 | 19-Oct-19 | Sold 1936 | |
| Yocona | US Coast Guard | Tender | 383d | 182 | 19-Oct-19 | Sold 1925 | |
| Mississippi | (unclassified) | 144 | 126 | 1922 | Active | ||
| Kiwanis | 142 | 1923 | |||||
| John C Irwin | Corps of Engineers | Towboat | 143 | 98 | 1924 | ||
| 425 | Tank Barge | 184 | 100 | 1924 | Active | ||
| C. C. Webber | Upper Mississippi Barge Line | Towboat | 319 | 130 | 1927 | ||
| General Ashburn | Inland Waterways Corp | Towboat | 319 | 130 | 1927 | ||
| S. S. Thorpe | Upper Mississippi Barge Line | Towboat | 319 | 130 | 1927 | Later George M Verity, preserved in Keokuk IA 1961 | |
| John W. Weeks | Upper Mississippi Barge Line | Towboat | 319 | 130 | 1928 | ||
| Willow (WAGL 253) | US Coast Guard | Tender | 1,070 | 200 | 4-Oct-27 | To Corps of Engineers 1945 as quarters boat (QB 2732), sold 1962 | |
| James W. Good | Towboat | 530 | 1930 | ||||
| Patrick J. Hurley | 530 | 1930 | |||||
| Herbert Hoover | 1,090 | 1931 | |||||
| Myrtle (WAGL 263) | US Coast Guard | Tender | 186 | 92 | 1932 | Sold 1964 | |
| Todd | Corps of Engineers | Cutter Dredge | 770d | 222 | 1932 | ||
| ? | 136 | 93 | 1932 | Later fishing vessel Sea Inspector | |||
| Amos J. Gordon | 695 | 1933 | |||||
| Del Commune | Corps of Engineers | Towboat | 525d | 161 | 1937 | ||
| Goldenrod (WAGL 213) | US Coast Guard | Tender | 170 | 104 | 2-Jun-38 | Later WLR 213, to NSF 1973 | |
| Poplar (WAGL 241) | US Coast Guard | Tender | 170 | 104 | 1939 | Later WLR 241, to NSF 1973 | |
| Bluebonnet (WAGL 257) | US Coast Guard | Tender | 184 | 85 | 4-Nov-39 | Later WLI 257, sold 1966 as fishing vessel Tiffany, now F V Tiffany | |
| Dogwood (WAGL 259) | US Coast Guard | Tender | 230 | 109 | 17-Sep-41 | Later WLR 259, sold 19xx as tug Dogwood, now a yacht. | |
| Sycamore (WAGL 268) | US Coast Guard | Tender | 230 | 114 | 9-Sep-41 | Later WLR 268, decommissioned 1977 | |
| Wm. L. Guthrie | US Army | Dredge | 1941 | ||||
| L 73 | US Army | Dist. Box Boat | 11/41-1/42 | ||||
| L 74 | US Army | Dist. Box Boat | 11/41-1/42 | ||||
| L 75 | US Army | Dist. Box Boat | 11/41-1/42 | ||||
| L 76 | US Army | Dist. Box Boat | 11/41-1/42 | ||||
| L 77 | US Army | Dist. Box Boat | 11/41-1/42 | ||||
| L 100 | US Army | Dist. Box Boat | Apr-42 | ||||
| L 101 | US Army | Dist. Box Boat | Apr-42 | ||||
| ST 47 | US Army | Tug | 93 | Dec-42 | Sold 1946 as Roleta, then Deborah, Ann K | ||
| 218 | ST 48 | US Army | Tug | 93 | 87 | Jan-43 | Sold 19xx as Fort Norfolk, then Patricia J, Walter Tracy, Micky, Rio Manzanares, now Medoro |
| ST 49 | US Army | Tug | 93 | Jan-43 | Sold 19xx as Kings Point, then Atlas, Gatco Maryland | ||
| [one of below] | Tug | 174 | 95 | 1942 | Later Devious, now KP Rambler | ||
| Cosmos (WAGL 293) | US Coast Guard | Tender | 178 | 100 | 5-Dec-42 | Later WLI 293, decommissioned 1985 | |
| Barberry (WAGL 294) | US Coast Guard | Tender | 178 | 94 | 3-Jan-43 | Later WLI 294, donated to Maryland State 1971, now patrol J Millard Tawes | |
| Rambler (WAGL 298) | US Coast Guard | Tender | 178 | 95 | 26-May-43 | Later WLI 298, excess 1998 | |
| Brier (WAGL 299) | US Coast Guard | Tender | 178 | 95 | 2-Jul-43 | Later WLI 299, to USN 1968 as IX 307, sold 1983, now fishing vessel Brier | |
| Smilax (WAGL 315) | US Coast Guard | Tender | 178 | 94 | 1-Nov-44 | Active | |
| Primrose (WAGL 316) | US Coast Guard | Tender | 178 | 94 | 23-Oct-44 | Decommissioned 1999, now research vessel Primrose | |
| Verbena (WAGL 317) | US Coast Guard | Tender | 178 | 100 | 13-Nov-44 | Later WLI 317, sold 1978 as fishing Nancy Lee, reefed 1989 | |
| Foxglove (WAGL 285) | US Coast Guard | Tender | 385 | 114 | 1-Oct-45 | Decommissioned 1977, sold 19xx as Harvey, now fishing vessel Maranatha | |
| Blueberry (WLI 65302) | U.S. Coast Guard | Buoy Tender | 68d | 65 | 1946 | Decommissioned 1976, sold 1994 as tug Blueberry | |
| Blackberry (WLI 65303) | U.S. Coast Guard | Buoy Tender | 68d | 65 | 25-Aug-46 | Active | |
| Chokeberry (WLI 65304) | U.S. Coast Guard | Buoy Tender | 68d | 65 | 30-Aug-46 | To Boston Police 2002, sold 2005 | |
| Loganberry (WLI 65305) | U.S. Coast Guard | Buoy Tender | 68d | 65 | 29-Aug-46 | Decommissioned 1976 | |
| Dell Queen | Wisconsin Ducks Inc | Excursion Boat | 18 | 55 | 1949 | Active | |
| Commander | Dells Boat Tours Llc | Excursion Boat | 18 | 54 | 1950 | Active | |
| 247 | Quiver | Havana Dock Enterprises Llc | Towboat | 49 | 45 | 1951 | Active |
| Mary | Molo Sand & Gravel | Towboat | 42 | 47 | 1951 | Later Floyd E Thompson, now Jean Ann | |
| Commodore | Dells Boat Tours Llc | Excursion Boat | 15 | 54 | 1952 | Active | |
| Pathfinder | Corps of Engineers | Towboat | 62 | 75 | 1954 | Now Dan. | |
| Tar Heel | Star Towing Corporation | Towboat | 12 | 36 | 1955 | Active | |
| Memphis Queen II | Capt. E. B. Langford | Excursion Boat | 45 | 64 | 1955 | Active | |
| Dorothy A | Allgire Tug Boat Co. | Towboat | 39 | 46 | 1955 | Active | |
| Julie N. Dubuque | River Excursions | Excursion Boat | 46 | 1956 | Later River Belle, now Spirit of Brownsville? | ||
| 161 | Ida P | Boh Bros Construction Co Llc | Towboat | 29 | 36 | 1957 | Active |
| 159 | Ethlyn P | Boh Bros Construction Co Llc | Towboat | 29 | 36 | 1957 | Active |
| Cecile H | Tennesee Valley Authority | Towboat | 24 | 36 | 1958 | Later M V Mary Berry | |
| 293 | Lilly Belle | R A Hastings | Excursion Boat | 37 | 46 | 1958 | Preserved in Dubuque IA |
| 301 | Bayou Belle | Ralph Martin | Excursion Boat | 30 | 39 | 1959 | Active |
| Coal Queen | Bissell Towing | Towboat | 39 | 47 | 1959 | Active | |
| Lucy Woodstock | EXPLORE Institute | Research Vessel | 38 | 39 | 1959 | Being restored | |
| Wenonah | Grand Portage-Isle Royale | Excursion Boat | 91 | 62 | 1960 | Active | |
| Belle of Hot Springs | Belle of Hot Springs Inc | Excursion Boat | 93 | 62 | 1960 | Active | |
| Julie N Dubuque II | John N Bull | Excursion Boat | 59 | 64 | 1960 | Now Kudzu Queen | |
| Running River | Excursion Boat | 1960 | Now The Lady of the Lake? | ||||
| Talisman | New Salem State Park | Excursion Boat | 60 | 1961 | Laid up in the 1990s | ||
| Commander | Ozark Excursions Llc | Excursion Boat | 35 | 62 | 1961 | Active | |
| 315 | Sunliner | Wendella Sightseeing | Excursion Boat | 35 | 62 | 1961 | Active |
| Slufoot | Charles C. Gram | Recreational | 21 | 31 | 1961 | Active | |
| Lady Joan | Excursion Boat | 40 | 55 | 1962 | Later Tom Sawyer, River Queen, now Amanda | ||
| Ole Susannah | River Cruises Inc | Excursion Boat | 59 | 64 | 1962 | Later Princess Augusta, First Lady of Jacksonville, now Lady St Johns | |
| Gateway Clipper | Gateway Clipper Line | Excursion Boat | 85 | 1962 | Later Betty Blake | ||
| Luella Belle | Cal Harbor Excursions | Excursion Boat | 32 | 54 | 1962 | Later City of Nauvoo, city of Champions, Good Ship Lollipop, now Countess | |
| Lady M | Excursion Boat | 44 | 54 | 1962 | Later Mark Twain, Spirit of Vicksburg, now Mark Twain | ||
| Prairie Gal | Excursion Boat | 1963 | Later La Crosse Queen | ||||
| River Queen | Rutherford's Cruise Line, Inc. | Excursion Boat | 34 | 54 | 1963 | Active | |
| Jubilee I | Sun Line Cincinnati | Excursion Boat | 78 | 83 | 1963 | Later Belle of New Bern, now Jubilee | |
| Showboat | Rainbow River Tours | Excursion Boat | 78 | 83 | 1963 | Now Becky Thatcher. | |
| Mark Twain | Streckfus Steamers | Excursion Boat | 87 | 83 | 1963 | Later Huck Finn, now Spirit of Jefferson | |
| Mark Twain | Riverboat Excursions Inc | Excursion Boat | 87 | 85 | 1964 | Active | |
| 351 | Tom Sawyer | Loc-Wood Boat & Motors Inc | Excursion Boat | 33 | 58 | 1965 | Active |
| Biscayne Belle | Grey Lione Tours | Excursion Boat | 78 | 83 | 1965 | Later Gateway River Belle, now Tunica Queen | |
| Paddlewheel Queen | ICW Entertainment Inc | Excursion Boat | 87 | 83 | 1965 | Active | |
| Showboat II | Rainbow River Tours | Excursion Boat | 97 | 91 | 1965 | Later Liberty Belle, Gateway Liberty Belle, now Duchess | |
| Tom Sawyer | Streckfus Steamers | Excursion Boat | 99 | 83 | 1966 | Active | |
| Prairie Gal II | Excursion Boat | 67 | 1966 | ||||
| Harbour Town Ferry | Yacht Time at Harbour Towne | Excursion Boat | 17 | 50 | 1966 | Active | |
| 359 | Belle Carol | John Halverson | Excursion Boat | 25 | 60 | 1967 | Later River Queen Mary, now Lady Ann |
| Capt Clarks Showboat | Captain Clark’s Boat Line | Excursion Boat | 99 | 84 | 1967 | Later Commodore, Becky Thatcher, now Spirit of Sacramento. | |
| 362 | Lady D | Excursion Boat | 19 | 63 | 1968 | Later The Spirit of Des Moines, Lady D, now Jon Anderson White Riverboat | |
| Miss Green River II | M E Nash | Excursion Boat | 1968 | Active | |||
| Showboat | Captain Clark’s Boat Line | Excursion Boat | 123 | 1968 | Active | ||
| The Sandy | Forever/NPC Resorts Llc | Excursion Boat | 26 | 40 | 1968 | Active | |
| ? | Yacht | 51 | 1968 | Active | |||
| 368 | Arc | L. I. F. E. | Tanker | 48 | 57 | 1969 | Active |
| 369 | Border Star | Missouri River Nav Co | Excursion Boat | 45 | 65 | 1969 | Later Bonnie Belle , Northern Star, Arwana Belle, Cocoa Belle, now Magnolia Belle |
| 370 | Jonathan Padelford | Padelford Packet Boat Co. | Excursion Boat | 66 | 85 | 1970 | Active |
| Lady Mim | Excursion Boat | 54 | 60 | 1970 | Later Commodore, Captain Ann, Emerald Queen, now Bama Belle | ||
| 372 | Don Rob T | Quarry Creek Land Developers | Recreational | 61 | 50 | 1970 | Active |
| 373 | Julia Belle Swain | Capt Dennis Trone | Excursion Boat | 98 | 108 | 1971 | [1915 steam engine]Laid up 2008 |
| 377 | City of New Madrid | St Jude & New Madrid Harbor | Towboat | 83 | 65 | 1971 | Active |