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<br />Th~ St~nd~rd Project Flood profile for the Rio Grande <br />eVBrages le~~ than 1 foot higher than the Intermediate Regional <br />Flood along most of the stre"",. Stag" comp..ri~onu with historical <br />flood~ c~nnot be m3de due to the lack of relieble past flood d~tB <br />on the study reach and changes in tho etr8"~'S regime. <br />Figures 6 through 8 ehow the heighte th8t would be <br />reaohed by th~ Stand~rd Project flood and the intermediate Regional <br />flood on facilities presently e^isting within the Rio Grande flood <br />plain in the 9t~dy reach. <br /> <br />TABLE 9 <br /> <br />SHt.lOARD PROJECT fLOOO <br /> <br />~AXlmu~ VELOCITIES <br /> <br />R10 GRMmr <br /> <br />Loqtion <br />Mile <br /> <br />ma:<im~'m <br />Channel <br />ft. per Bec. <br /> <br />Velocitieg <br />Overbank <br />ft.perssc. <br /> <br />'/4.17 <br /> <br />'.5 <br /> <br />,." <br /> <br />Vslocities. Rate~ of Rise. end Dur~tion <br />Weter velocities d~ring floods depend largely upon the <br />Bize, eh~pe, ~nd slope of the stra~mbod. snd tha condition of the <br />ohannel. These factors very on different etreams and at different <br />locat!ona and timee on thes"me stream. <br /> <br />84.0Z <br /> <br />6.0 <br /> <br />2.2 <br /> <br />Tables 8 ~nd 9 show the maximum velooities that would <br /> <br />T~blee 10 end 11 show the total height of riss, tha <br />. ~, ~ the duration above b~nkfull stage of the <br />maxi"""", ra," o. r~s", ,"" <br />intermedhte Regional flood ~,'<1 Standard Project Flood. respact!vely, <br />for typical flood plain scctions on the Rio Grande. <br /> <br />occur in tho main channel and overbenk areae of the Rio Grande <br /> <br />during the Intermediate Regional flood and Standard Project flOOd, <br />re"pe"Uvely. <br /> <br />TABLE 1<: <br /> <br />TASLEe <br /> <br />INTER~rDIATE HEr-tONAL FLOOD <br />RATES Of RiSEANGDURATloN <br /> <br />iNTERMEDiATE RECiONAL fLOOD <br /> <br />AID GRANDE <br /> <br />Location <br />i'llle <br /> <br />Maximum <br />Cn~nn"l <br />ft.pereec. <br /> <br />Veloc1Ues <br />Overbank <br />fto per s,,~. <br /> <br /> fJeight Tim.. !IIaxi",~m Duration <br /> mile Abov<l "' "' Rate of Above <br />Location Stat"Line Ria.. Jlli.!!. Rise Bankfull <br /> faet hours ftjhr hours <br />" reach BU.2:> '.0 a.o 0.5 19.0 <br />uppar <br />" lower r~ach 73.67 6.a 5.0 1.' 23.8 <br /> <br />MAXIfIlUMVELoCITJES <br /> <br />RlOGRANDE <br /> <br />72.13 <br /> <br />'.2 <br /> <br />2.2 <br /> <br />84.02 <br /> <br />6.6 <br /> <br />2.' <br /> <br />32 <br /> <br />" <br />