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<br />susceptable to washing out and material could clog bridges downstream. ~~
<br /> , 0 . . . 0 0 - -
<br />>h' e" Railroad will pass . ll\ax!mumt'loodof about 80-year frequency. ,
<br /> - . , , 0 - " . .
<br /> . - - 0 . . - - - 0
<br />,., largert'loods ", tracks act as a barrier to floodflow resulting . , . " - - - " , - " -
<br /> 0 g" 0 0 0 0 0 0 0 0 0
<br /> "
<br />in considarabl~ shallow flooding. >h' 1-25 highway acts as a consid- .. 0
<br /> 0
<br />erable constriction causing water tobeponcted. future Hood crests .
<br /> ,
<br />and pertinent elevations " bridge and culvert crossings within the ~ ~. 0
<br /> - - - 0 0 . 0 . , l
<br />st1Jdy area are listed in Table ,. . - . 0 0 0 . - - 0
<br /> , . - - 0 . . " - - 0 i
<br /> , . - - " - - - " - -
<br /> Velocities of Flow. CO<I\puted water velocities during floods 00 0 0 0 0 0 0 0 . 0
<br /> 0 .
<br /> - .
<br />depend 00 the size and shape of the cross sections, conditions of the .
<br /> .
<br /> Listed in Table ,
<br />streillll channel, and the b<.d slope. 4 are computed
<br /> . . . . 0 . . . . . . .,
<br />velocities and representative cross sections throughout the study ~ o. . ,
<br /> ~ 8 . - " - . . - " " 0 "
<br /> ~ . . . 0 . . " . . , I
<br />area during the 100- and SOO-year floods. "' , " " - - - - " " "
<br /> ., 0 0 0 0 0 0 0 0 0 0 ~
<br /> Rise and Duration of Flooding. Flood character- 6
<br /> ~~o 0' 0 .
<br />isticsof the 100- and SOO-year floods are shown in Table 5, These ~ t 0 0 . . . 0 . . . I
<br /> 0
<br /> l .. 0 . ~ - - . 0 0 0 .~
<br />data reflect averaged maxi..u", conditions on the Cucharas River. , .. - - . . 0 0 0 0 -
<br /> - . .. - " " " " N - - - ..
<br /> vo 0 . . 0 0 0 . 0 0
<br />stage hydrograph for the oOO-yenr frequency Hood on ,"0 Cucharas l ~ .
<br /> .~
<br /> ~ "
<br />River ;0 sllown on Plate " " ,
<br /> 0 I
<br /> Future Flood Heiqhts. figures 2 and , show ,", heights V . 0 - . " . " . " ,
<br /> . .
<br /> ~ . - - 0 . . . . . - ,
<br />that wculd be reached by th.. "", and500-year Hoods at ""lect"d I - " . 0 , . - " . , ,
<br /> . - ~ - - " " - - " .
<br /> .- 0 . 0 . 0 0 0 . . ,
<br />locations within th.. flood plains considered in this stUdy. 81 . . .
<br /> V 0
<br /> . ,
<br /> ~1 ~
<br /> . .
<br /> . ,
<br /> ,I 0 0 0 0 ] -
<br /> ! 0 ~ . . - 0
<br /> ., , . 0 . 0 N " . .
<br /> . , <I . <I . . . , . d
<br /> . ~ $ a . . ,
<br /> u " 0 N " " 0
<br /> v v - " ~ !
<br /> . .
<br /> " .
<br /> .
<br /> . ~ 0 , ~
<br /> . 0 0
<br /> , ~ 1 ! 0 ..
<br /> ! , ~ " .
<br /> a ~ 0 , ~ ~ , ,
<br /> . , ~ l
<br /> . . . . ,
<br /> . 0 , , " . . , " ,
<br /> , ;! . 0 . < . . g " , ..
<br /> s ~ a . , " 0 . .
<br /> " 0 . , " v ~ . .
<br /> . . . ~ .. v , . 0 . >
<br /> . . . , .
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<br /> ~ N - .~ V . " - v u V
<br /> , , . . . , l , ,
<br /> . , 0 0 . u " . . . ~
<br /> " 8 , .
<br /> v . . .
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