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<br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I .... <br />... <br />"- <br />... <br />~ <br /> l( <br />I ~ <br />~ <br /> ~ <br />I ... <br />... <br />i:: <br /> ~ <br />I ~ <br />(.;) <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />40,000 <br /> <br />30.000 <br /> <br />20,000 <br /> <br />10,000 <br /> <br />8,000 <br /> <br />6,000 <br /> <br />4,000 <br /> <br />3,000 <br /> <br />2,000 <br /> <br />1,000 <br />800 <br /> <br />600 <br />500 <br /> <br />400 <br /> <br />300 <br /> <br />200 <br /> <br />100 <br /> <br /> 10.0 <br /> 8.0 <br /> 6.0 <br /> 4.0 <br /> 3.0 <br /> 2.0 <br /> ~ <br /> 1.0 :s <br /> .8 ~ <br />--- .6 ~ <br />--- -- " <br /> -.....- <br /> .4 --- <br /> ~ <br /> .3 ;::: <br /> .2 ~ <br /> i:: <br /> ~ <br /> '" <br /> ~ <br /> .1 ~ <br /> I.> <br /> <br />--- <br />--- <br />--- <br /> <br />.05 <br /> <br />.01 <br /> <br />Exampl. , <br />L-7250 ft. <br />H- 130 ft. <br />Te. O. S7 hr,. <br /> <br />NOMOGRAPH TO DETERMINE <br />TIME OF CONCENTRATION <br /> <br />For Use on Drainage Areas < 1,000 Acres <br /> <br />FIGU'RE s- 6 <br /> <br />26 <br /> <br />10 <br /> <br />20 <br /> <br />30 <br /> <br />40 <br /> <br />60 <br /> <br />80 .... <br />~ <br />"- <br />100 ... <br />... <br />~ <br />~ <br />~ <br />200 ~ <br />e; <br />::: <br />300<:; <br />:i <br />400 S! <br />... <br />~ <br />... <br />... <br />600 ... <br /> <br />800 <br /> <br />1,000 <br /> <br />2,000 <br /> <br />3,000 <br /> <br />4,000 <br /> <br />5,000 <br /> <br />Civd El'lIjJinUr 1940 <br />