﻿490 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Floods 
  in 
  Canisteo 
  river. 
  This 
  stream 
  is 
  subject 
  to 
  severe 
  

   floods 
  from 
  which 
  the 
  city 
  of 
  Horniellsville 
  has 
  suffered 
  greatly 
  

   in 
  the 
  past. 
  The 
  fall 
  of 
  Canisteo 
  river 
  for 
  two 
  miles 
  above 
  the 
  

   mouth 
  of 
  Canaeadea 
  creek 
  is 
  2 
  feet 
  per 
  mile, 
  while 
  below 
  the 
  

   mouth 
  of 
  that 
  creek 
  it 
  is 
  8 
  feet 
  per 
  mile. 
  Above 
  the 
  mouths 
  of 
  

   Bennett 
  and 
  Stephens 
  creeks 
  the 
  fall 
  is 
  3J 
  feet 
  per 
  mile 
  and 
  10 
  

   feet 
  per 
  mile 
  below 
  their 
  mouths. 
  These 
  facts 
  illustrate 
  the 
  effect 
  

   of 
  torrential 
  tributaries 
  of 
  a 
  stream 
  in 
  flattening 
  slopes 
  above 
  

   their 
  confluence 
  and 
  increasing 
  them 
  below. 
  

  

  Flood 
  in 
  Cohocton 
  river. 
  Conditions 
  similar 
  to 
  those 
  stated 
  

   for 
  the 
  Canisteo 
  river 
  apply 
  on 
  the 
  Cohocton 
  river. 
  

  

  Floods 
  in 
  Delaware 
  river. 
  Very 
  little 
  is 
  known 
  about 
  flood- 
  

   flows 
  in 
  this 
  stream, 
  although 
  they 
  are 
  undoubtedly 
  high, 
  in 
  many 
  

   cases 
  no 
  doubt 
  approximating 
  from 
  70 
  to 
  80 
  cubic 
  feet 
  per 
  second 
  

   per 
  square 
  mile. 
  The 
  valleys 
  are 
  narrow 
  and 
  do 
  not, 
  generally 
  

   speaking, 
  offer 
  any 
  great 
  opportunity 
  for 
  water 
  storage. 
  

  

  Summary 
  of 
  information 
  as 
  to 
  maximum 
  flows 
  in 
  New 
  York. 
  

   Concluding 
  the 
  subject 
  of 
  flood-flows 
  in 
  New 
  York, 
  on 
  Oswego 
  

   river 
  and 
  tributaries, 
  where 
  there 
  is 
  extremely 
  large 
  lake 
  pond- 
  

   age, 
  the 
  flood-flows 
  do 
  not 
  exceed 
  6 
  to 
  8 
  cubic 
  feet 
  per 
  second 
  

   per 
  square 
  male. 
  

  

  On 
  the 
  Hudson 
  river, 
  with 
  considerable 
  lake 
  pondage, 
  the 
  

   extreme 
  floods 
  are 
  15 
  to 
  16 
  cubic 
  feet 
  per 
  second 
  per 
  square 
  mile. 
  

  

  On 
  the 
  Black 
  river, 
  below 
  Carthage, 
  flood-flows 
  of 
  16 
  to 
  20 
  cubic 
  

   feet 
  per 
  second 
  per 
  square 
  mile 
  are 
  about 
  the 
  maximum; 
  above 
  

   Lyon 
  Falls, 
  25 
  to 
  40 
  cubic 
  feet 
  per 
  second 
  per 
  square 
  mile, 
  and 
  

   in 
  the 
  tributaries, 
  generally 
  from 
  30 
  to 
  60 
  cubic 
  feet 
  per 
  second 
  

   per. 
  square 
  mile. 
  

  

  On 
  the 
  Mohawk 
  river, 
  with 
  steep 
  torrential 
  tributaries, 
  floods 
  

   are 
  from 
  20 
  to 
  50 
  cubic 
  feet 
  per 
  second 
  per 
  square 
  male, 
  and 
  in 
  the 
  

   upper 
  sections 
  they 
  may 
  be 
  as 
  high 
  as 
  about 
  60 
  cubic 
  feet 
  per 
  

   second 
  per 
  square 
  mile. 
  

  

  On 
  the 
  Genesee 
  river 
  the 
  extreme 
  maximum 
  thus 
  far 
  observed 
  

   at 
  Rochester, 
  above 
  which 
  place 
  there 
  is 
  an 
  extensive 
  pondage 
  area, 
  

   is 
  18 
  to 
  24 
  cubic 
  feet 
  per 
  second 
  per 
  square 
  mile, 
  while 
  at 
  Mount 
  

   Morris 
  and 
  Portage 
  floods 
  rise 
  to 
  over 
  40 
  cubic 
  feet 
  per 
  second 
  

   per 
  square 
  mile. 
  On 
  this 
  latter 
  portion 
  of 
  the 
  stream 
  a 
  possible 
  

   maximum 
  may 
  be 
  expected 
  of 
  60 
  to 
  70 
  cubic 
  feet 
  per 
  second 
  per 
  

   square 
  mile. 
  

  

  