. Water Supply and Irrigation Papers of the United States Geological Survey . -ennial springs that gush forth from the foothills near San Saba the water ran down to the low grounds and formed a pond,but about 1870 a ditch was const rueted along the fool hills to t he river,which took the water away from the pond, and it soon dried up. Astone dam 200 feet long and 4 feet high was built to deflect the waterinto the ditch. The ditch shown in fig. 13 is 1 mile long, 5 feel wide,and 1 foot deep. The former pond is now an irrigated farm, throughwhich runs a long sag. To convey the w
. Water Supply and Irrigation Papers of the United States Geological Survey . -ennial springs that gush forth from the foothills near San Saba the water ran down to the low grounds and formed a pond,but about 1870 a ditch was const rueted along the fool hills to t he river,which took the water away from the pond, and it soon dried up. Astone dam 200 feet long and 4 feet high was built to deflect the waterinto the ditch. The ditch shown in fig. 13 is 1 mile long, 5 feel wide,and 1 foot deep. The former pond is now an irrigated farm, throughwhich runs a long sag. To convey the water across 1 his sag a rockrace and a pine and cypress flu me are used. The soil is a rich, blackloam, slightly sandy. rl ne crops raised are corn, cotton, ribbon cane, 36 IRRIGATION SYSTEMS OF TEXAS. [NO. 71. and sweet potatoes. The yield per acre is generally from 40 to 60bushels of corn, from 1 to 2 bales of cotton, about 290 gallons ofmolasses, and from 150 to 300 bushels of potatoes. The ditch isowned by Mr. J. A. Sloan & Sons, and in 1902 it irrigated 186 Fig. 13.—Map of Sloan irrigation system. Doran system.—Seventeen miles west of the town of San Saba isthe irrigation plant of W. R. Doran. The water is drawn from theriver through a ditch 600 feet long into a pond from which it ispumped into the flume. A 16-horsepower engine runs a centrifugalpump against a lift of 28 feet, delivering 2 cubic feet per sec- taylor.] SAN SABA VALLEY. 37 ond. One hundred acres (in cotton, millet, cane, and corn) are to beirrigated. West & Burnet system.—Ten miles northwest of San Saba West &Burnet have constructed an impounding reservoir of an estimatedcapacity of 20,000,000 gallons, by making a dam across a dam is 705 feet long, 11- feet high, and cost nearly $1,000. Theordinary crops will be irrigated and the number of acres the canalwill serve will be determined by trial. King system.—Probably the oldest irrigation plant in the San Sabacountry is that of the
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