Colberg Boat Works
Stockton CA
Colberg Boat Works was started in 1896 by three brothers, Wilton, Jack and Gordon Colberg, and survived into the 1990s. The yard was immediately to the east of Stephen Bros., at 848 West Fremont Street. The yard looks abandoned and is an EPA Superfund site, although there are plans for redevelopment of the neighborhood.
| O/N | Name | Customer | Type | Tons | LOA | Delivered | Notes | |
| 218594 | John | freighter | 250 | 109 | 1919 | |||
| San Joaquin County | ferry | 1926 | ||||||
| 226540 | Service | Freighters Inc. | freighter | 100 | 64 | 1927 | ||
| 230479 | Prospect Island | John Lucas ? | tugboat | 15 | 47 | 1931 | ||
| McCloud | US Army | launch | 40 | 1942 | ||||
| barge 37 | US Army | barge | 45 | 1943 | ||||
| barge 38 | US Army | barge | 45 | 1943 | ||||
| YMS-95 | US Navy | minesweeper | 278 | 136 | 12 Mar 1942 | struck 1946 | ||
| YMS-97 | US Navy | minesweeper | 278 | 136 | 11 Apr 1942 | struck 1947 | ||
| YMS-99 | US Navy | minesweeper | 278 | 136 | 27 Apr 1942 | struck 1946 | ||
| YMS-383 | US Navy | minesweeper | 278 | 136 | 24 Feb 1943 | foundered 1945 | ||
| YMS-384 | US Navy | minesweeper | 278 | 136 | 9 Apr 1943 | grounded 1945 and destroyed | ||
| YMS-385 | US Navy | minesweeper | 278 | 136 | 30 Apr 1943 | mined and lost 1944 | ||
| YMS-386 | US Navy | minesweeper | 278 | 136 | 23 Jul 1943 | struck 1946 | ||
| YMS-387 | US Navy | minesweeper | 278 | 136 | 17 Aug 1943 | sold 1946 | ||
| YMS-388 | US Navy | minesweeper | 278 | 136 | 24 Sep 1943 | sold 1947 | ||
| Anchor (ARS-13) | US Navy | rescue ship | 1,089 | 183 | 23 Oct 1943 | sold 1947 | ||
| Protector (ARS-14) | US Navy | rescue ship | 1,089 | 183 | 28 Dec 1943 | sold 1946, resold to Pakistan 1952 | ||
| Extractor (ARS-15) | US Navy | rescue ship | 1,089 | 183 | 3 Mar 1944 | sunk accidentally in the Marianas and lost 1945 | ||
| ATR-50 | US Navy | tugboat | 850 | 165 | 5 May 1944 | disposed-of 1946 | ||
| ATR-51 | US Navy | tugboat | 850 | 165 | 22 Jun 1944 | disposed-of 1946 | ||
| ATR-52 | US Navy | tugboat | 850 | 165 | 31 Jul 1944 | disposed-of 1946 | ||
| ATR-53 | US Navy | tugboat | 850 | 165 | 11 Sep 1944 | disposed-of 1946 | ||
| PCS-1402 | US Navy | subchaser | 278 | 136 | 13 Jan 1944 | |||
| PCS-1403 | US Navy | subchaser | 278 | 136 | 17 Feb 1944 | to the Philippines as Laguna (PG-12) | ||
| PCS-1404 | US Navy | subchaser | 278 | 136 | 30 Mar 1944 | later Armistead Rust (AGS-9) 1945, sold 1948 | ||
| YP-645 | US Navy | yard patrol | 120 | 1945 | to MARAD 1947 | |||
| YP-646 | US Navy | yard patrol | 120 | 1945 | transferred overseas 1948, Santa Rosa | |||
| 246265 | Paolina T | M. & G. Torrente | trawler | 107 | 73 | 1944 | later Day Island | |
| 248990 | Delta Boss | Walnut Grove Marina | freighter | 48 | 52 | 1945 | ||
| 45-2 | 249930 | Dora W | trawler | 14 | 37 | 1946 | ||
| 249931 | How D Hai | trawler | 20 | 48 | 1946 | |||
| 251903 | Victory II | Delta ferry | ferry | 91 | 58 | 1947 | ||
| 251931 | Aimee June | trawler | 14 | 37 | 1947 | |||
| Dynamic (MSO-432) | US Navy | minesweeper | 780 | 7 Feb 1954 | to Spain 1974 as Guadalete (M-41): struck 1998 | |||
| Engage (MSO-433) | US Navy | minesweeper | 780 | 29 Jun 1954 | scrapped 2002 | |||
| Embattle (MSO-434) | US Navy | minesweeper | 780 | 16 Nov 1954 | sold 1976, scrapped 1993 | |||
| 269589 | Mary T | trawler | 13 | 53 | 1955 | later Elizabeth | ||
| 54-1 | 538926 | Edythe | Wes Anderson Eng. | industrial | 36 | 50 | 1955 | |
| 276748 | Harbor King | Golden Gate Scenic SS | ferry | 77 | 62 | 1958 | ||
| 276863 | Standard No. 4 | Standard Oil of CA | tugboat | 186 | 74 | 1958 | later William R | |
| 277776 | Albacore | fisheries patrol | 95 | 82 | 1958 | later Sea Scout Ship Chaser | ||
| 278711 | Chena | Crowley Marine | tugboat | 91 | 47 | 1959 | ||
| 278851 | Harbor Princess | Golden Gate Scenic SS | ferry | 98 | 82 | 1959 | ||
| 287201 | American River | Harbor Tug & barge | tugboat | 134 | 84 | 1961 | later Cassie Lind | |
| 288705 | Royal Prince | Golden Gate Scenic SS | ferry | 98 | 83 | 1962 | ||
| 63-2 | 295630 | San Joaquin River | Harbor Tug & barge | tugboat | 140 | 64 | 1964 | |
| 66-6 | 508762 | Napa River | Harbor Tug & barge | tugboat | 136 | 64 | 1967 | later Petaluma |
| 67-25 | 510718 | Drake | recreational | 72 | 61 | 1967 | later Phoenix | |
| 513351 | Harbor Emperor | Golden Gate Scenic SS | ferry | 94 | 83 | 1968 | ||
| 520254 | Prudhoe Bay | Global Diving | industrial | 50 | 58 | 1969 | ||
| 524054 | Manson 44 | Manson Construction | barge | 642 | 150 | 1968 | later DS44 | |
| 69-3 | 525655 | Irene Lauritzen | Salt River Const'n. | tugboat | 40 | 47 | 1970 | |
| 526289 | Kavik River | Crowley Marine | tugboat | 105 | 64 | 1970 | ||
| 526290 | Kuparuk River | Crowley Marine | tugboat | 105 | 64 | 1970 | ||
| 71-1 | 533655 | Catalina Prince | Catalina Cruises | ferry | 97 | 127 | 1971 | later Alcatraz Flyer |
| 72-18 | 545818 | San Francisco | SF Bar Pilots | pilot boat | 119 | 78 | 1973 | later R/V Zephyr |
| 73-2 | 548119 | Catalina King | Catalina Cruises | ferry | 97 | 127 | 1974 | |
| 557225 | Catalina Empress | Catalina Cruises | ferry | 97 | 127 | 1974 | later Alcatraz Clipper | |
| 74-2 | 557339 | Toolik River | Crowley Marine | tugboat | 105 | 64 | 1974 | |
| 562754 | Lassen | Shaver Transportation | tugboat | 136 | 66 | 1975 | ||
| 75-1 | 564493 | Sag River | Crowley Marine | tugboat | 105 | 64 | 1975 | |
| 76-1 | 572538 | Catalina Monarch | Catalina Cruises | ferry | 97 | 127 | 1976 | later Bay Monarch |
| 76-2 | 578339 | California | SF Bar Pilots | pilot boat | 130 | 80 | 1976 | later Drake |
| 77-1 | 582287 | Catalina Countess | Catalina Cruises | ferry | 97 | 127 | 1976 | later Statue of Liberty V |
| 79-1 | 611286 | Royal Knight | Harbor Breeze Corp. | ferry | 59 | 78 | 1979 | later Kristina |