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Cost and Accuracy Comparisons
Mechanical Current Meter System with AquaCalc Versus Other Point Velocity Discharge Systems
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The USGS Tacoma Bank-Operated Cableways are designed as a safe, low- cost, one-man operation cableway to replace manned cable cars or for sites that are not easily gaged by boat or a bridge. The system uses a standard B-56 sounding reel (not included) which does not need to be mounted permanently but can easily be moved from site to site. Model 4740 standard system consists of bearing posts, main tow cable, pulleys, trolley, vandal protection covers and miscellaneous hardware with a nominal span of 150 feet (45 meters) and 150 lbs. (68 kg) sounding weight or sediment sampler maximum capacity. Also the Tacoma BOC can be used with the extended length high capacity B-56-Ext and used for installations up to 290 feet (90m) spans and up to 220 lbs (100kg) capacity.
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