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<br />Lake Fork special Dredged Channel near Bement, illinois. Approximate bottom
<br />width 25 feet, Picture taken November 1925.
<br />
<br />I
<br />I Date of obser-
<br />vation
<br />
<br />Jan. 19,1926
<br />Feb. 26,1926
<br />Apr. 9,1926
<br />Apr. 8,1926
<br />
<br />Aver-
<br />.,.
<br />maxi.
<br />mum
<br />depth
<br />
<br />Aver-
<br />su~:ce
<br />widttl
<br />
<br />
<br />-
<br />
<br />J~ -
<br />
<br />...
<br />'.1
<br />U
<br />7..
<br />113.0
<br />
<br />...
<br />
<br />-
<br />
<br />J:::. A1 d
<br />
<br />Dis-
<br />charge
<br />
<br />Aver-
<br />...
<br />"""
<br />section
<br />
<br />M..n
<br />h)-',
<br />draulic
<br />radius
<br />
<br />coom.1
<br />eientor I
<br />rough.
<br />n...
<br />n
<br />
<br />Description of ('hannel
<br />
<br />Slopeo!
<br />w.w
<br />Burface
<br />
<br />Mean
<br />veloc-
<br />ity
<br />
<br />40.8
<br />"".
<br />.&8
<br />62.2
<br />
<br />120.4
<br />189.7
<br />220.7
<br />279.6
<br />
<br />},31
<br />1.66
<br />u.
<br />1."
<br />
<br />2.78 0.000186
<br />3.79 .000169
<br />4.19 .(0)146
<br />4.91 ,000142
<br />
<br />0.030
<br />.00.
<br />.002
<br />,032
<br />
<br />Coursl', straight; 816 feet 10Dg. Cross section, very little variation in shape;
<br />for variation in size, see fig. 20, B. Side Ilopts, fairly regular. Bottom,
<br />.uneven and irregular. Soil, lower part, light gray clay; upper part,
<br />)'ellowish gray clny. Condition, side slopes covered with dense growth
<br />of bushy willows, except near bottom; some small poplar saplings at
<br />intervals along course; one silt bar about middle of courset otherwise
<br />bottom in Quite good condition. C'Of1struded, 1885; redreoged, 1009.
<br />
<br />158..
<br />206.1
<br />332.0
<br /><<11.1
<br />
<br />._.nn_ n__"__" ____n__ n_..__ __.._n_ _____n___ __n___.
<br />
<br />Aver.
<br />...
<br />mall-
<br />mum
<br />depth
<br />
<br />Aver.
<br />su~f:oo
<br />.....idth
<br />
<br />I Average llilUlmum depth at baokful stage.
<br />
<br />COllditlon, practically no growth in channel; cleared during fall of 1925.
<br />(PI. 25,C.) .
<br />
<br />Bogue Hasty Dredged Channel near Shaw, Mississippi. Approximate bottom width
<br />25 feet. Picture taken in 1915,
<br />
<br />I
<br />I Date of obser-
<br />vation
<br />
<br />
<br />Dls.
<br />charge
<br />
<br />Aver.
<br />...
<br />"""
<br />section
<br />
<br />M..n
<br />hy.
<br />draulic
<br />radius
<br />
<br />coom.1
<br />cientorl
<br />rou'b'l
<br />n...
<br />n
<br />
<br />Description or channel
<br />
<br />Slope of
<br />w.w
<br />surface
<br />
<br />Mean
<br />veloc-
<br />ity
<br />
<br />'on. 5,1915 2." 3&1 60.1 74.8 0.67 1.85 0.000152 0.038 CQUr.te, straight; 1,039 feH lon~. eros, 'ectl~ sli~ht and gradual variations
<br />'on. al,1915 .... 42.3 183.6 137.0 1.34 3.01 .000163 .001 in shape; for variations in s ze, see fig. 4, . de dopu, right side very
<br />Feb. 25,19Ui 6.60 47.2 275.9 ..... 1.32 '.08 .000119 .03' irregular and caving badly; left side Quite regular. Bottom, rather lrregu.
<br />Feb. 22,Un~ 6.76 47.3 ....8 210.8 1.74 4.10 .000166 ..28 lar. Soil, upper part, dark silty loam; lower ~, 1i3bt yellow clay.
<br />Feb. 23,191.5 7.80 ".3 ..... 314.0 '.07 .,. .000169 ..20 C'Of1ditionj upper part right side Slope covered WIth wee s and small tree
<br />'on. 25,1916 19.1iO 58.2 786.0 414.0 1." .,1 .0001.57 .036 sprouts; eft side slope practically free from vegetation. C\m8tru.cttd
<br /> September,1911. (PI. 4, A and ftg. 3, C.)
<br />
<br />I Average mwmum depth at bankful stage.
<br />
<br />15
<br />
<br />
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