Identifier: watersupplyirrig6571unit (find matches)
Title: Water Supply and Irrigation Papers of the United States Geological Survey
Year: 1902 (1900s)
Authors: United States Geological Survey
Subjects:
Publisher:
Contributing Library: Clemson University Libraries
Digitizing Sponsor: LYRASIS Members and Sloan Foundation

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er. WATER POWERS. For the first few miles from its source Saco River is a mountainousstream, with fluctuating flow, becoming a rivulet in summer and amountain torrent in the spring. It falls more than 1,100 feet in thefirst 12 miles, or about 90 feet per mile. In the next 18-J miles theaverage slope in successive intervals steadily diminishes from 28^feet per mile to 6.8 feet per mile, the fall in the entire distance, fromthe western boundary of the town of Bartlett to the railroad crossingat Conway Center, amounting to 333 feet. Next follows a longstretch of dead water, with a fall of only 69 feet in 28 miles, or 2^feet per mile. Then are encountered the Great Falls at the town ofHiram, where the river descends 72 feet in a distance of about 900feet (see PI. XIV), and finally, in the 40 miles to tide water at Bidde-ford and Saco, the fall amounts in the aggregate to 271 feet, or anaverage of 6.6 feet per mile. The following table gives the fall in theriver from its source to the sea:
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PRESSEY.) SACO RIVER.Fall in Saco River 107 Locality. Distancefrom mouth ofriver. Heightabovetide. Fall be-tweenpoints. Distance between points. A.veragefall permilf be- 1 weenpoints. Miles.104 Feet.1,880 Feet. Miles. F( • !. 1,135 12.5 90.8 91 i 745 185 6.5 28.5 Mouth of Rocky Branch 85 560 41) 2.11 24.5 Month f Ellis River 83 511 65 5.0 13.0 78 446 34 5.0 6. 8 73 412 Head of Great Falls 69 28.0 2.5 45 343 Foot of Great Falls 72 (a) 44;40 271266 271 40. 8 6.6 4 0 a 900 feet. The important portion of the river is that extending from GreatFalls to tide water, covering, as has been stated, a fall of 271 feet inabout 40 miles, the drainage area increasing from 850 to 1,734 squaremiles. The principal owner of power is the Saco Water Power Com-pany, which controls the privileges at Biddeford and Saco, UnionFalls, Salmon Falls, and Hiram. At Biddeford and Saco the river falls over trap ledges, giving atola! descent from above the upper dam to tide water of about 40 feet,fluctuati

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