290′ Mackinaw Class Great Lakes Icebreaker
Designed specifically to operate in the Great Lakes
Basically a Wind Class breaker lengthened, widened and deepend
Model: No
| Designation | Name | Class | Hull | Service | Comments | Pictures |
| USCGC | Mackinaw | WAGB | 83 | 1944 – 2006 | CGH |
Emergency Icebreaker
The Coast Guard acquired 5 ice breaking ferries specifically
to work keeping the Great Lakes ice free during the war
They did the same job as icebreaking tugs
They were classified as AGLs because their work aided navigation
Model: No
| Designation | Name | Class | Class | Hull | Service | Comments | Picture |
| USCGC | Arrowhead (ex Cadillac) |
Icebreaker160 | WAGL | 176 | 1942 – 1945 | Icebreaking Ferry | |
| USCGC | Almond (ex LaSalle) |
Icebreaker160 | WAGL | 177 | 1942 – 1945 | Icebreaking Ferry | |
| USCGC | Chaparral (ex Halcyon) |
Icebreaker160 | WAGL | 178 | 1942 – 1946 | Icebreaking Ferry | |
| USCGC | Franklin D. Roosevelt (ex Huck Fin) |
Icebreaker160 | WAGL | 1944 – 1944 | Ice breaking barge – Great Lakes | ||
| USCGC | Bellefonte | Icebreaker | WYP | 373 | 1944 – 1944 | Failed icebreaker |