CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER E—LOAD LINES (parts 41 to 47) > PART 45—GREAT LAKES LOAD LINES > SUBPART E—Unmanned River Barges on Lake Michigan Routes (§45.171 to §45.197) > 45.177—Freeboard requirements.

45.177—Freeboard requirements.

(a) All barges must have a minimum freeboard of 24 inches (610 mm).
(b) Additionally, open hopper barges must have a combined freeboard plus cargo box coaming height of at least 54 inches (1,372 mm).