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<br />t ~ <br /> <br />124 lIYI)RAlJLlC ENGINEERING '94 <br /> <br />Table 1.--Se/e"ltd Hydrau.lk Data and Computed Ruughness Coeff;c:;cnlS <br />1m::;; meler; m2:11 square meler; m/s = meler per second; ml/s "" cubic meter pCI ~ond: <br />lm ::: kilomelcr. Dashes iadicatc missing value.) <br /> <br />Discharge Area <br />(m]J~) (m2) <br /> <br />Avcmae values for reach <br />StrelUR- <br />.... Hydraulic <br />widlh radius Veil> <br />(m) (m) (Ill; <br /> <br />froude <br />ijumber <br /> <br />Waler- <br />surface <br />slope <br /> <br />Energy <br />gradiem <br /> <br />Manning's <br />. <br /> <br /> Indian River near 11IIlian I ak.r. N Y <br /> Panicle size: Inaermediale diameter dso "" 0.31 m; dll4 :=. 0.S5 m. <br />2.18 6.02 13.9 0.42 0.46 0.22 0.01109 0.01106 0.129 <br />3.65 6.10 14.0 .43 .60 .29 .01050 .01049 .097 <br />6.00 1.00 14.4 .41 .1l6 .39 .01119 .01103 .014 <br />9.37 8.92 16.6 .52 .1.05 .46 .01198 .0\161 .1l66 <br />12.8 10.6 11.6 .59 1.20 .50 .01248 .01199 .064 <br />20.3 13.8 18.6 .12 1.48 .55 .0I3ll6 .01300 .062 <br />22.5 14.6 18.8 .16 1.55 .56 .01406 .Dl312 .061 <br /> EsofJus. ('tet'k III l"nldt)mnk N V <br /> Panicle size: InlenDediate diameIel dso = 0.34 m; da4 '"' 0.91 m. <br />6].4 54.9 46.6 1.10 1.22 0.31 0.00328 0.00306 0.050 <br />.174 91.5 no 1.69 1.90 .46 .00314 .00343 .1144 <br />. 246 III 54.9 1.% 2.24 .50 .00391 .00358 .042 <br />2>6 108 54.6 1.93 2.31 .54 .lXl405 .00363 .039 <br />1.059 246 64.9 3.64 4.31 .11 .00459 .00434 .Ulb <br />1.464 281 61.0 4.09 5.\0 .19 .00500 .00431 .0.14 <br />.394 ))6 54.2 2.47 2.88 .58 .00446 .043 <br />b394 148 89.0 1.65 2.66 .66 .00340 .030 <br /> Reaver Kill .11 ('nnk'il roans. N V <br /> Particle siu: IntermcdialC diameIU dso = 0.24 m; du = 0.52 ro, <br />.16.3 25.6 no 0.48 0.64 0.29 0.00409 0.00406 0.062 <br />11.4 54.0 51.6 .93 1.33 .44 .00411 .00405 .047 <br />141 16.6 60.1 1.25 1.84 .52 .0041l8 .00391 .1140 <br />c241 1011 63.4 1.68 2.29 .56 .00448 .00432 . .041 <br />'c 286 115 64.0 1.11 2.49 .59 .IX1439 .IX1424 .039 <br />c291 114 64.0 1.11 2.60 .62 .00455 .00428 .031 <br />611 m 61.1 2.56 3.83 .16 .00511 .00414 .034 <br />d439 153 68.3 2.22 2.116 .61 .00338 .033 <br /> Mill Rronk 0,"1" Dllnmven N Y <br /> Particle size: Intennedialediameaerdso=O.14 m; da4 = 0.28 m. <br />c 3.09 4.06 I\.6 0.35 0.17 0.43 0.00991 O.Dll9'JO 0.062 <br />.4.18 5.89 13.2 .42 .81 .44 .01013 .01015 .069 <br />eS.69 5.10 13.1 .42 1.01 .50 .ollt5 .Dl095 .051 <br />c48.1 20.1l 18.9 .99 2.45 .16 .01000 .01063 .1142 <br />e1O.8 22.8 19.1 1.12 3.12 .91 .00<)18 .010lIO .035 <br /> <br />. The dUll ust;d for Ihis A.value calcuhllion were colleered durin& lhe growing season. <br />a 1948 A-value calculaaion. Site isjusl upstream (rom current sile. (From Barnes. 1961.) <br />b 1948 n-value calculalion. Sile is aboullO kat downstream from currenl site. (From Barnes, 1961.) <br />c This R-value calculation is affecled by now over a low bank on &he right side of &he reach. <br /> <br />. <br /> <br />. <br /> <br />ROUGHNESS COEFFICIENTS-NY STATE <br /> <br />125 <br /> <br />Table J ...Selecled HydrauUc Data and Compured Roughness Coefficienrs..cominued <br /> Average values for leach <br /> ~ueam- <br /> wf.1'1h Hydmu.lic Waler- <br />Discharge Area radius Velocity Fn>udc surface EnerBY Manning's <br />(m'/sl (m') (m) (m) (mI') Dumber slope grodienl . <br /> T..,.mnt'.. Kill ne:u- A.nde1{ NY <br /> Panicle sile: lnrermediale diameter ~. 0.2Im; ds. = 0.44 m. <br /> n:lI.a colleclt'n durinI.' lite nnn.vTnwinlP l:PJIoVln <br />2.41 3.34 11.3 0.211 0.13 0.43 0.01006 0.01001 0.059 <br />6.82 6.12 12.6 .45 1.12 .51 .01084 .oU)68 .054 <br />f1.02 6.56 12.8 .48 1.01 .48 .00934 .00941 .055 <br />f8.92 1.44 13.1 .53 1.20 .51 .IXl964 .00962 .054 <br />16.9 I I.:! 14.5 .11 1.52 .55 .01060 .01061 .054 <br />29.4 IS.2 16.2 .1l6 1.94 .64 .01229 .01205 .052 <br /> Data col)er:led liuJinii' the Imlwinil' ~'iOn <br />4.96 5.66 12.5 0.43 0.88 0.42 0.01066 0.01051 0.066 <br />f 11.9 9.85 \3.9 .65 1.21 .46 .01042 .01026 .065 <br />f 14.0 10.3 14.1 .61 \.31 .51 .01060 .01045 .058 <br />23.6 t4.5 15.9 .84 1.63 ,54 .01084 .01091 .051 <br /> F.asl Rrnnr:h Anl;ahl~ River al An Sable Forks N V <br /> Panicle sa.: lmeno_ diameter d,.; 0.30 m; ds-t; 0.16 m. <br />t01 62.5 53.9 1.10 1.12 0.52 0.00861 0.00826 0.056 <br />'162 114.3 63.1 1.21 1.92 .53 .Oll842 .llOIII8 .055 <br />249 114 68.3 1.62 2.11 .53 .()()191 .00195 .051 <br />306 130 10.1 1.18 2.36 .55 .DOII22 .llOIIt5 .056 <br />&221 99.4 463 2.05 2.21 .48 .00562 .055 <br /> <br />d 1948 ft.value calculation. Site is 1.6 bn dOWDsueam from curreRI site. (From Barnes. 1967.) <br />e This n.value calculation is affecled by 1010 22 percenl now~area expansion in the teaCh. <br />r This p-value calcullll.ion is affcclCd by 1110 18 percent flow..area expansion in tbe reach. The n <br />values computed for cacb subteach differ by 0.010 10 0.020. <br />g 1951 a-value calcula1ion. SilC is aboQtO.4 km upsucam fromcurrcnl sile. (From Barnes, 1967.) <br /> <br />~. <br />i <br />. 1 <br />!i <br />~2 <br /> <br />i I <br /> <br />. 1MIiM,...____.... <br />. .....CrWl..~ <br />. ........e..,.. <br />. MilIIIOall_o...".. <br />. n..p...-~ <br />& e......,............. <br /> <br />. <br /> <br /> <br />~ <br />. <br /> <br />. ......._......1.* <br />. ......c-k.~ <br />. ,-"ll'JIaCalRftII, <br />. T..........._...... <br /> <br /> <br />. <br /> <br />'l,;; <br /> <br />. <br />..'" "002 <br /> <br />... <br /> <br />..". <br /> <br />0.014 <br /> <br />0,ll.I .... .... <br /> <br />... <br /> <br />O.ODI <br /> <br />w.HNIG'$ A:UlHNESlS COEFf'ICENT.. <br />Figure 1.- Rdation bdweenMmning's roughness <br />toe/fidmt dn4l1ydrru4lic rddius <br /> <br />--- <br />Figure 2.- ReIotio. /ietwe,. <nngy pien, and <br />hydraulic radius., four sl1icted sites <br /> <br />. <br />