﻿446 
  

  

  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Cubic 
  feet 
  

   per 
  second 
  

  

  May 
  21, 
  12 
  m 
  30,730 
  

  

  May 
  21, 
  6 
  p. 
  m 
  26,500 
  

  

  May 
  22, 
  7 
  a. 
  m 
  15,650 
  

  

  May 
  22, 
  12 
  m 
  13,650 
  

  

  May 
  22, 
  6 
  p. 
  m 
  10,720 
  

  

  May 
  23, 
  7 
  a. 
  in 
  7,300 
  

  

  May 
  23, 
  12 
  m 
  6,700 
  

  

  May 
  23, 
  6 
  p. 
  m 
  5,690 
  

  

  May 
  24, 
  7 
  a. 
  m 
  5,390 
  

  

  The 
  total 
  runoff 
  from 
  7 
  a. 
  m. 
  of 
  May 
  18 
  to 
  7 
  a. 
  m. 
  of 
  May 
  24 
  was 
  

   over 
  7,000,000,000 
  cubic 
  feet. 
  

  

  On 
  the 
  morning 
  of 
  May 
  21 
  the 
  flats 
  in 
  the 
  broad, 
  level 
  valley 
  of 
  

   the 
  Genesee 
  river 
  and 
  Oanaseraga. 
  creek, 
  between 
  Dansville, 
  Mount 
  

   Morris, 
  and 
  Rochester, 
  which 
  have 
  an 
  area 
  of 
  from 
  60 
  to 
  80 
  

  

  6000 
  

  

  

  

  

  

  

  

  

  

  

  

  

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  4000 
  

  

  3000 
  

   2C00 
  

   1000 
  

  

  i 
  

  

  

  

  

  

  

  

  

  

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  -- 
  

  

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  4* 
  

  

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  jo 
  

  

  

  , 
  — 
  

  

  

  6am 
  NOON 
  6 
  PM 
  6 
  AM 
  NOON 
  6 
  PM 
  6 
  A.M 
  NOON 
  6 
  PM 
  

   MAY 
  IS 
  MAY 
  19 
  MAY 
  ZO 
  

  

  6AM 
  NOON 
  6PM 
  

   MAY 
  El 
  

  

  6 
  AM 
  NOON 
  6PM 
  

   MAY2Z 
  

  

  6 
  AM 
  NOON 
  6 
  P.M 
  6 
  AM 
  NOON 
  6 
  PM 
  

   MAY 
  23 
  MAY 
  24 
  

  

  

  Fig. 
  35 
  Flood 
  flow 
  of 
  Genesee 
  river 
  May 
  18-23, 
  1894. 
  

  

  square 
  miles, 
  were 
  nearly 
  flooded, 
  in 
  some 
  localities 
  to 
  a 
  depth 
  of 
  

   from 
  4 
  to 
  6 
  feet. 
  On 
  account 
  of 
  the 
  large 
  pondage 
  by 
  these 
  flats, 
  

   although 
  the 
  maximum 
  runoff 
  at 
  Mount 
  Morris 
  was 
  42,000 
  cubic 
  

   feet 
  per 
  second 
  at 
  3.30 
  a. 
  m. 
  on 
  the 
  morning 
  of 
  May 
  21, 
  at 
  

   Kochester 
  the 
  maximum 
  flow 
  did 
  not 
  at 
  any 
  time 
  exceed 
  about 
  

   20,000 
  cubic 
  feet 
  per 
  second. 
  We 
  have, 
  then, 
  a 
  case 
  where 
  a 
  large 
  

   pondage 
  has, 
  by 
  prolonging 
  the 
  time 
  of 
  runoff, 
  modified 
  a 
  flood- 
  

   flow 
  over 
  50 
  per 
  cent. 
  As 
  further 
  illustrating 
  the 
  effect 
  of 
  a 
  large 
  

   reservoir, 
  or, 
  what 
  is 
  the 
  same 
  thing, 
  the 
  effect 
  of 
  a 
  large 
  pond 
  

  

  