﻿HYDROLOGY 
  OF 
  NJ5W 
  YORK 
  445 
  

  

  It 
  will 
  be 
  noticed 
  that 
  the 
  area 
  at 
  Main 
  street, 
  the 
  first 
  bridge 
  

   below 
  the 
  aqueduct, 
  is 
  941 
  square 
  feet 
  less 
  than 
  that 
  of 
  the 
  Erie 
  

   canal 
  aqueduct. 
  

  

  The 
  commissioners 
  also 
  gave 
  some 
  attention 
  to 
  the 
  causes 
  which 
  

   made 
  the 
  flood 
  of 
  1865 
  greater 
  than 
  that 
  of 
  any 
  previous 
  year, 
  and 
  

   expressed 
  the 
  opinion 
  that 
  the 
  same 
  causes 
  might 
  produce 
  a 
  still 
  

   greater 
  flood 
  in 
  the 
  future. 
  1 
  

  

  As 
  a 
  chief 
  cause, 
  the 
  commissioners 
  considered 
  that 
  cutting 
  off 
  

   the 
  forests 
  and 
  clearing 
  up 
  lands 
  were 
  likely 
  to 
  lead 
  to 
  heavier 
  

   floods 
  from 
  year 
  to 
  year. 
  In 
  view, 
  therefore, 
  of 
  what 
  seemed 
  to 
  

   the 
  commissioners 
  a 
  constant 
  source 
  of 
  danger, 
  they 
  arrived 
  at 
  

   the 
  conclusion 
  that 
  a 
  much 
  larger 
  waterway 
  was 
  imperatively 
  

   necessary 
  through 
  the 
  city 
  of 
  Eochester. 
  2 
  

  

  A 
  severe 
  flood 
  also 
  occurred 
  in 
  the 
  upper 
  Genesee 
  at 
  Mount 
  

   Morris 
  in 
  March, 
  1893, 
  at 
  which 
  time 
  large 
  quantities 
  of 
  ice 
  w^ere 
  

   left 
  in 
  the 
  streets 
  of 
  the 
  lower 
  portion 
  of 
  that 
  village. 
  

  

  Flood 
  in 
  Genesee 
  river 
  of 
  May, 
  1894- 
  It 
  is 
  very 
  common 
  for 
  the 
  

   flats 
  in 
  the 
  vicinity 
  of 
  Mount 
  Morris 
  to 
  be 
  inundated, 
  w 
  T 
  ith 
  great 
  

   destruction 
  of 
  farms 
  and 
  growing 
  crops. 
  The 
  flats 
  between 
  Mount 
  

   Morris 
  and 
  Eochester 
  were 
  inundated 
  May 
  20-23, 
  1894, 
  the 
  damage 
  

   to 
  growing 
  crops 
  at 
  that 
  time 
  amounting 
  to 
  many 
  thousand 
  dol- 
  

   lars. 
  As 
  interesting 
  data 
  we 
  may 
  discuss 
  that 
  flood, 
  at 
  which 
  

   time 
  the 
  approximate 
  discharge 
  of 
  the 
  stream 
  at 
  Mount 
  Morris 
  

   (catchment, 
  1070 
  square 
  miles), 
  was 
  as 
  follows 
  : 
  

  

  Cubic 
  feet 
  

   per 
  second 
  

  

  May 
  18, 
  7 
  a. 
  m 
  600 
  

  

  May 
  18, 
  6 
  p. 
  m 
  3,090 
  

  

  May 
  19, 
  7 
  a. 
  m 
  5,530 
  

  

  May 
  19, 
  6 
  p. 
  m 
  5,090 
  

  

  May 
  20, 
  7 
  a. 
  m 
  16,580 
  

  

  May 
  20, 
  12 
  m. 
  . 
  22,210 
  

  

  May 
  20, 
  6 
  p. 
  m 
  28,000 
  

  

  May 
  21, 
  3.30 
  a. 
  m 
  42,0.00 
  

  

  May 
  21, 
  7 
  a. 
  m 
  33,000 
  

  

  x 
  The 
  report 
  of 
  the 
  commissioners 
  appointed 
  to 
  investigate 
  the 
  causes 
  of 
  

   the 
  inundation 
  of 
  the 
  city 
  of 
  Rochester 
  in 
  March, 
  1865, 
  may 
  be 
  found 
  in 
  

   Assembly 
  Document 
  No. 
  117 
  of 
  the 
  Session 
  of 
  1866. 
  

  

  2 
  The 
  waterway 
  is 
  still 
  substantially 
  the 
  same 
  as 
  in 
  1865. 
  If 
  anything, 
  

   it 
  has 
  been 
  somewhat 
  contracted 
  by 
  various 
  constructions 
  since 
  that 
  day. 
  

  

  