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<br />N 16 <br />W <br />c..o 1 7 <br />I-" <br /> <br />18 <br /> <br />19 <br /> <br />20 <br /> <br />2l <br />22 <br /> <br />23 <br /> <br />24 <br /> <br />25 <br />26 <br />27 <br /> <br />Waterlogging and salinity problems in Grand Valley . <br /> <br />Soil classification map of the Grand Valley Salinity <br />Control Demonstration Project . .. ... . . <br /> <br />Typical geologic cross-section through the <br />demonstration area . . . . . . . . . . . <br /> <br />. . . <br /> <br />Location of hydrologic measurement points in the <br />Grand Valley Salinity Control Demonstration <br />Project Area . . . . . . . . . . <br /> <br />Installation of monitoring network . . . <br /> <br />Canal ponding tests by project personnel <br /> <br />Photographs of the canal lining program <br /> <br />Location and type of canal linings constructed in <br />the demonstration area . . . . . . . . . . . . . <br /> <br />Seasonal distribution of salt pickup from the farms <br />in the test area . . . . . . . . . . . . . . <br /> <br />Announcement of grant award in Daily Sentinel <br />Data collection activities by project personnel <br /> <br />Staff gauges for 8-inch by 3-foot and a 3-inch <br />by 3-foot Cutthroat flumes ..... <br /> <br />28 <br /> <br />Cutthroat flume installation and operation <br /> <br />29 <br /> <br />Collection of lateral design information . <br /> <br />30 <br /> <br />Map of Lateral HL C shows improvements and field <br />locations .. . . . . . . . . . . . . . <br /> <br />3l <br /> <br />Tiling of the large open drain on Lateral HL C <br /> <br />32 <br /> <br />Map of lateral and on-farm improvements under the <br />HL E lateral system . . . . . . . <br /> <br />33 <br /> <br />Overhead sprinklers on Lateral HL E <br /> <br />34 <br /> <br />Map of lateral and on-farm improvements under PD 177 <br />lateral system . . . . . <br /> <br />35 <br />36 <br /> <br />Construction of Lateral PD 177 <br /> <br />Drip irrigation on Lateral PD 177 <br /> <br />ix <br /> <br />. <br /> <br />, ;1 <br />,0 <br />,; <br />" <br /> <br />46 <br /> <br />47 <br /> <br />48 <br /> <br />50 <br /> <br />51 <br /> <br />57 <br />59 <br /> <br />61 <br /> <br />67 <br />72 <br />80 <br /> <br />83 <br />84 <br />86 <br /> <br />89 <br /> <br />90 <br /> <br />92 <br /> <br />93 <br /> <br />97 <br />98 <br />99 <br /> <br /> <br />'.--,' <br />