The 42-foot, 50-ton pushboat Walter D. Johnson, newly built by Keith A. Record of Portland, Ore., is undertaking a demanding job on the Columbia River—that of spotting bridge construction barges in tight quarters and rapid river currents. For this tough assignment, vessel owner Johnson Bros.
The Nichols Brothers Boat Builders, Inc., Freeland, Wash., boatyard recently completed the M/V Tiny, a 70-foot long triplescrew shallow draft tug boat. The construction of this vessel was the result of a joint venture between Crowley Maritime
Quality Shipyards, Houma, La., recently delivered the 4,200-hp pushboat SuperAmerica, the third in a series of three new vessels built for Ashland Oil, Lexington, Ky. The three pushboats replaced towboats that were all more than 40 years old. Ashland invested about $3.
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