66 



Marc'li 20 incliisive, only 0.94 inches of rain fell. From Fig. 3 it is apjjarent 

 that according to the government rain gage at Pvu'due, and a j)rivate gage, 

 about 1 inch of water fell preceding the 23d, enough to thoroughly saturate 

 the soil. On the 23d, 1.75 inches of rain fell; another inch on the 24th; 1.35 

 on the 25th-26th and snow on the 26th, which did not immediately melt. 

 While there are no other rain gages on the watershed above this point from 

 which records were obtainable, it is quite probable that the diagram repre- 

 sents average conditions. (See Table in Engineering News, A\)y'\\ 3,1913, 

 p. 381.) 



The daily maximum temperature during tlie flood ])eriod is also shown 

 on Fig. 3. While there had been no snow the saturated condition of the ground, 

 which was free from frost, the temperature and the distribution of rainfall 

 caused the highest known stage of the river. 



Gagings of the Wabash River here have been made by students at Purdue 

 University for several years and by the Weather Bureau and U. S. Geo- 

 logical Survey. 



From these we find the following greatest annual discharge: 



Date. Max. for Year in Cu. Ft. per Sec. 



1904, March 27 70,000 (estimated.) 



1907, March 15 41,500 



1908, March 7 57,000 



1909, February 25 44,000 



1910, January 19 49,000 



1911, January 29 31.000 



1912, March 20 45,900 



1913, March 26* 95,400 (including How over levee.) 



From the aboxc data it is evident that the Hood of 1913 was greater than 

 any other recent one. 



The maximum flood rate at Lafayette was less than 20 cubic feet per 

 second per squai'e mile. l''or Logansport , the Hood of 1904 gave less than 20 

 cubic feet per second pei' scjuare mile. 



These nvv low I'ales and as the r.ninfall did not ;i\-erage as great as has 

 been r-ecorded i'oi- e(|U!d ai'eas ol liei'wheres il was nol a Hood which would 

 occni' only once in a. hundred y<';irs, bul ni;iy he expected more ln'(|Ueiitly 

 tlian that. 



•Note.— A more cxUMidcd invc-tiualidii of the llouil iianiiiK-s iiulicad-s llial the luaxiiiiuin di.s- 

 cliarKc may liav(^ icaflird l:!(),00(l (•ul)ic feet per scvond. 



