OCR Text |
Show 94 : lie radius are the same absolutely , then A is ( pos- pos ) sible to determine the velocity at some other point by use of the slope . Otherwise , unless the ( charac- charac ) ter of the bed and the ( cross-section crosssection ) remain the ( same-the samethe ) velocities do not ( vary-unless varyunless ) the ( char- char ) acter of the bed and the ( cross-section crosssection ) remain the . same , the formula can not be used . Plate 8 represents the relation between the mean velocity in the ( cross-section crosssection ) and the gage heights . . This plate was prepared in connection with the ( de- de ) termination of the maximum velocities . It ( shows- shows ) the mean velocities in the ( cross-section crosssection ) . In that connection , ( white whilie ) talking about velocities ( refer- refer ) ence is made to Plate 12 , which is a ( cross-section crosssection ) of the river at Lees Ferry as based ( on oil ) observations made May 31,1924 , which shows to ( what -vNThat vNThat ) extent the velocities and the ( cross-section crosssection ) vary at ( any ally ) ( particn-- particn ) Jar time . ( "When When When ) that measurement was made , , the velocities varied from a maximum of 8.86 miles an hour to less than one mile . 8.86 miles an hour , , or ( nearly licarly ) 9 miles an hour , in the thread of the stream , , to less than one mile an hour at the banks , , and to , less than 5 miles an hour at the bottom iii the center of the stream . At that time , when the measurement ( was -was was ) made , , the No . . 1 gage read 18.3 ; the river gage 13.87 ; ; the cable gage 12.80 ; and the width of the river was 410 feet . . The area , was 6,850 square feet ; the ( dis- dis ) charge was 59,400 ( second-feet secondfeet ) . . |