﻿Catchment 
  

  

  area, 
  

  

  square 
  miles 
  

  

  Flood 
  flow, 
  

   cubic 
  feet 
  

   per 
  second 
  

  

  63.0 
  

  

  1,944 
  

  

  93.2 
  

  

  6,200 
  

  

  322.3 
  

  

  5,382 
  

  

  101.0 
  

  

  7,881 
  

  

  878.5 
  

  

  40,400 
  

  

  1158.0 
  

  

  61,807 
  

  

  HYDROLOGY 
  OP 
  NEW 
  YORK 
  465 
  

  

  the 
  flood-flows 
  for 
  April, 
  1869, 
  the 
  flows 
  having 
  been 
  corrected 
  by 
  

   the 
  use 
  of 
  the 
  Cornell 
  coefficients 
  in 
  the 
  manner 
  already 
  described 
  : 
  

  

  Name 
  of 
  stream 
  

  

  Otter 
  

  

  Independence 
  

  

  Beaver 
  

  

  Deer 
  

  

  Black 
  

  

  Total 
  . 
  . 
  . 
  

  

  From 
  the 
  preceding 
  tabulation 
  it 
  appears 
  that 
  a 
  catchment 
  

   area 
  of 
  1458 
  square 
  miles 
  yielded 
  a 
  maximum 
  flood-flow 
  about 
  

   April 
  22, 
  1869, 
  of 
  61,807 
  cubic 
  feet 
  per 
  second, 
  or 
  at 
  the 
  rate 
  of 
  

   42.3 
  cubic 
  feet 
  per 
  second 
  per 
  square 
  mile. 
  The 
  total 
  area 
  above 
  

   Carthage, 
  however, 
  is 
  1812.2 
  square 
  miles. 
  Assuming 
  the 
  same 
  

   average 
  flow 
  from 
  the 
  balance 
  of 
  the 
  catchment 
  area 
  as 
  from 
  the 
  

   1458 
  square 
  miles 
  included 
  in 
  the 
  streams 
  tabulated, 
  it 
  follows 
  

   that 
  the 
  total 
  inflow 
  to 
  the 
  pond 
  area 
  between 
  Carthage 
  and 
  

   Lyon 
  Falls 
  was 
  at 
  the 
  rate 
  of 
  75,830 
  cubic 
  feet 
  per 
  second. 
  The 
  

   greatest 
  flow 
  at 
  Carthage, 
  which 
  occurred 
  April 
  23, 
  1869, 
  was 
  only 
  

   39,529 
  cubic 
  feet 
  per 
  second, 
  the 
  effect 
  of 
  the 
  temporary 
  pondage 
  

   above 
  that 
  place 
  having 
  been 
  to 
  reduce 
  the 
  flood 
  from 
  about 
  

   76,000 
  cubic 
  feet 
  per 
  second 
  to 
  about 
  40,000 
  cubic 
  feet 
  per 
  second. 
  

  

  Inasmuch 
  as 
  there 
  are 
  no 
  affluents 
  to 
  the 
  stream 
  below 
  

   Carthage, 
  there 
  is 
  no 
  special 
  reason 
  why 
  the 
  flood-flow 
  below 
  that 
  

   place 
  should 
  have 
  any 
  higher 
  rate 
  than 
  at 
  Carthage. 
  The 
  reported 
  

   flow 
  at 
  Watertown 
  in 
  April, 
  1869, 
  of 
  39,696 
  cubic 
  feet 
  per 
  second 
  

   is, 
  therefore, 
  considered 
  as 
  fairly 
  justifying 
  the 
  Carthage 
  figure. 
  

   A 
  comparison 
  of 
  the 
  two 
  shows 
  at 
  any 
  rate 
  that 
  the 
  error 
  is 
  not 
  

   likely 
  to 
  be 
  more 
  than 
  a 
  few 
  per 
  cent. 
  

  

  On 
  April 
  21, 
  1900, 
  the 
  calculated 
  discharge 
  over 
  the 
  Hunting- 
  

   tonville 
  dam 
  was 
  30,150 
  cubic 
  feet 
  per 
  second 
  (catchment, 
  1889 
  

   square 
  miles), 
  or 
  at 
  the 
  rate 
  of 
  about 
  16 
  cubic 
  feet 
  per 
  second 
  

   per 
  square 
  mile. 
  December 
  15, 
  1901, 
  there 
  was 
  a 
  flood 
  with 
  a 
  cal- 
  

   culated 
  discharge 
  of 
  37,000 
  cubic 
  feet 
  per 
  second, 
  or 
  19.2 
  cubic 
  

   feet 
  per 
  second 
  per 
  square 
  mile. 
  

  

  