Word: damming
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...Boulder Dam on the Colorado River is the world's biggest dam, but the Grand Coulee project on the Columbia River will be much bigger. This mighty barrier in the wild heart of Washington, 92 miles west of Spokane, will be not only the world's greatest but the costliest engineering job ever undertaken by man. The dam, power plant and irrigation canals will cost some $400,000,000-$25.000,000 more than the Panama Canal. The rampart across the Columbia, which has ten times the annual run-off of the Colorado, will be 4,300 ft. long...
...consecutive days in March. To slow down this fatality rate, the U. S. Bureau of Reclamation has instituted safety-first and first-aid instruction for the 6,000 employes. To quiet fears that the Columbia River salmon run would be ruined, plans for hatching and artificial propagation below the dam have been formulated...
...feet an hour, faster than the power shovels could get it out. The contractors were faced with a delay of several weeks and an additional excavation cost of $200,000. The engineers decided to try an old trick invented in Prussia but never before used in U. S. dam construction: freezing the front of the slide. They ran six miles of pipe into the clay, pumped in brine cooled by two big refrigerating machines, bought secondhand. The clay froze solid; the slide stopped. Cost...
...present tide ebbs, the level of marks would automatically equate with the curve. But if the improvement should prove permanent Professor Holcombe could then consider changing the course standards to preserve the indubitable advantage of having a scientific curve of distribution. But any arbitrary attempt attempt to dam the tide of rising marks now will rightly loose a flood of complaints on the Professor's head...
...branch line after all, but with it, his unpleasant prophecy started to come true. The railroad made Jefferson's tributary back country independent of the port. That same year (1873) Government engineers decided Big Cypress Bayou was flooding farms and villages in the sandy lowlands, dynamited the natural dam which had backed the bayou up toward Jefferson, thus put the city's docks out of commission, ended its water commerce with Shreveport and New Orleans...