Laserfiche WebLink
<br />C'J <br />. <br />I:.C) <br />C\,l" ", <br />c <br /> <br />Table 4 <br /> <br />Rainfall floods, Colorado River near Grand Canyon, Arizona* <br /> <br />Year <br /> <br />1909**. . . . . . . . . . . . . . . . . . . . . . . . . : <br /> <br />1911**. . . . . . . . . . . . . . . . . . . . . . . . . : <br />1916*'*- . . . . . . . . . . . . . . . . . . . . . . . . . : <br />1921**......................... : <br />1921**. . . . . . . . . . . . . . . . . . . . . . . . . : <br /> <br />1923....... ... .... .... .... .....: <br /> <br />1927.... .... ...... .........0...: <br /> <br />1929........ ... ...... ..........: <br /> <br />1929........ ...................: <br />1930....... ... .... .............; <br />1932........................... : <br />1941. . . . . . . . . . . . . . . . . . . . . . . . . . . : <br />1947...... .... ..... ............: <br />1948........ ... ... .............; <br />1957........................... ; <br />Maximum probable rain flood#...; <br /> <br />Maximum <br />15 -day <br />volume <br /> <br />Million <br />acre-feet <br />1.99 <br />1.25 <br />1.19 <br />1.26 <br />1.15 <br />.91 <br />1.61 <br />1.48 <br />.87 <br />1.03 <br />.64 <br />1.16 <br />.83 <br />.63 <br />.74 <br />5.06 <br /> <br />Maximum <br />mean daily <br />discharge <br /> <br />Cubic feet <br />per second <br />120,000 <br />90,000 <br />65,000 <br />70,000 <br />Bo,ooO <br />98,500 <br />114,000 <br />60,900 <br />48,100 <br />54, Boo <br />49,800 <br />82,000 <br />49,500 <br />45,800 <br />47,700 <br />560,000 <br /> <br />Date of <br />ma ximurn <br />discharge <br /> <br />13 Sep <br />14 Oct <br />16 Oct <br />4Aug <br />29 Aug <br />19 Sep <br />15 Sep <br />13 Aug <br />25 Sep <br />12Aug <br />30 Aug <br />16 Oct <br />25 Aug <br />15 Oct <br />2 Sep <br /> <br />* See plate 2 for location. <br />** Estimated value. <br /># Developed by Bureau of Reclamation (unregulated by lake Powell). <br /> <br />25 <br />