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<br />Two Mile Slough Dredged Channel near Sadorus, Illinois, Approximate bottom
<br />width 15 feet. Picture taken f\pril 1925,
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<br /> Aver. Aver- Aver- Moan Coeffi-
<br />Date of obser. ". ". Dis- ". Moan hy. Slope of cientof
<br />vatioll maxi. surface charge """ veloc- draullc water r011gh- Description 01 channel
<br /> mum .....Idth section Ity radius surface n",
<br /> depth n
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<br />Mar. 13,1925 , 2.7 18.3 2>.6 32.6 0.79 I.~ o. 000558 0.056 Courn, straight; 360 feet lon~. CroB" .!tclirm, considerable variation in shape;
<br />Jan. 19,UI26 '.0 22.3 ....2 ".7 .74 2.43 .00<lS50 .081 for variation in size, see g. 20, 1. Side 8l&pt8, irregular. Bottom, very
<br />Mar. 14,1025 6.' 27.2 .6.4 99.2 .87 '3.25 .0004" .081 irregular. &il, lower part, black sli~pery clay; u~r part, gray 8mb
<br />Feb. 25,1926 6.' 27.' 101.4 107.0 .06 3.41 . 000147 .07' clay loam. Condition, about 100 feet (I course cover with dense growt
<br />Mar. to, 1m 6.' 28.' 10~1 100.6 .99 3.38 .000422 .070 of bushy willows, some In bottom; remainder of both slopes covered with
<br />Jan. 18,1926 '.0 28.' 02.7 1ll.4 .83 ,3.49 .""""1 .096 weeds and a scattering growth of willows and poplars 1 to 6 inches in
<br />Apr. 7,1926 7.6 32.7 169.6 168.7 1.01 4.24 . 000600 ..,. diameter; no foliage; some silting in bottom. Comtrttdtd, redredged 1905;
<br /> cleared, 1921. (PI. 28, A and fig. 19, 1.)
<br />
<br />East Lake Fork Dredged Channel near Ivesdale, Illinois. Approximate bottom
<br />width 15 feet. Picture taken July 1927.
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<br />I D~te of obser-
<br />vation
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<br />Coeffi-
<br />cientof
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<br />Aver-
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<br />maxi-
<br />mum
<br />depth
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<br />Moan
<br />hy.
<br />draulio
<br />mdlus
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<br />Aver-
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<br />section
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<br />Aver-
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<br />surface
<br />width
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<br />Slope of
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<br />Description of channel
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<br />Din-
<br />e"""
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<br />Cow,e, straight; 800 feet long. Crw, ueliO'll, very little variation In shape;
<br />for variation In size, see FIgure 20, E.
<br />Side s/oper, rather Irregular. Botrom, uneven and rather irregular. &JU,
<br />lower part, yellowish gray clay; upper part dark-gray silt loam. Condi-
<br />tion, dead weeds and stubble on side slopes; channel had been cleared
<br />shortly before March, 1925. Comtructed, 1885; redredged about 1904.
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<br />Sept. 7,1926 6.2 28.4 64.0 101.6 0.63 3.24 0.000326 0.093
<br />Sept. ,5.1926 6.1 30.6 77.2 126.8 .61 3.70 .000279 .100
<br />.~~_::.~~~~. . i! I___~~~. .m~~.~. ..~.~. ...:::. ...~:~. _.:~. ...:~.
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<br />I Average maximum depth at bankfu1stage.
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<br />Condition, left side rather steep, showing SODle tendency to cave; brush
<br />larger on side slopes; foliage on all vegetatloll. (PI. 26, B.)
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