the efficient flow of commerce. WLRs push barges equipped with cranes that work ATON. Some WLRs are equipped with “jetting” devices that are used to set and anchor buoys in rivers with sandy or muddy bottoms. The barges are an integral part of the ATON mission. Barge lengths vary: 90 feet, 99 feet, and 130 feet. 75-FOOT KANKAKEE-CLASS RIVER BUOY TENDERS: • Length: 75 feet • Beam: 22 feet • Displacement: 175 tons • Power plant: Two Caterpillar 3412 diesels, two shafts, 1,024 bhp • Speed: 10 knots • Range: 600 nautical miles at 10 knots Vessels in this class: • Kankakee (WLR 75500) Memphis, Tennessee • Greenbrier (WLR 75501) Natchez, Mississippi 75-FOOT GASCONADE-CLASS RIVER BUOY TENDERS: • Length: 75 feet • Beam: 22 feet • Displacement: 140 tons • Power plant: Two Caterpillar D353 diesels, two shafts, 660-750 hp; or two Caterpillar 3412, two shafts, 1,250 hp
CGC Sangamon
• Speed: 10 knots • Range: 3,100 nautical miles at 6.5 knots Vessels in this class: • Wedge (WLR 75307) Demopolis, Alabama • Gasconade (WLR 75401) Omaha, Nebraska • Muskingum (WLR 75402) Sallislaw, Oklahoma • Wyaconda (WLR 75403) Dubuque, Iowa • Chippewa (WLR 75404) Buchanan, Tennessee • Cheyenne (WLR 75405) St. Louis, Missouri • Kickapoo (WLR 75406) Vicksburg, Mississippi
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USCGAUX PHOTO BY LEN SCHULTE / U.S. COAST GUARD PHOTO BY SEAMAN PAUL JIRASEK
CGC Greenbrier